Many new and revised requirements in the 2014 NEC® impact residential, commercial, and industrial electrical installations.

The 2014 NFPA 70®: NEC® covers the latest requirements on electrical wiring and equipment installation issues, including minimum provisions for the use of connections, voltage markings, conductors, and cables. Chapters address specific circumstances surrounding special occupancies and industrial equipment and machines. It also contains specific details on the safe installation and use of communications and signaling conductors.

All requirements in the National Electrical Code® are confirmed through a rigorous process of comprehensive review, markup, annotation and revision. The NEC has been published since 1897, and in that time the code and its accompanying National Electrical Code Handbook have undergone radical restructuring to reflect the latest electrical and wiring technologies.

Get up-to-code with the new 2014 National Electrical Code from NFPA!

NFPA 70 is the foundation of all electrical wiring and practice in the United States, and going without the latest edition creates a needless risk. Protect lives and property from electrical dangers and buy the 2014 National Electrical Code today
 

2014 NEC Self-Adhesive Tabs -

This set of pre-printed, self-adhesive tabs attach directly to the pages-helping you reference important articles and tables quickly.

Just Peel and Stick. Attractive and Durable. Special Design resists tearing.

For use on Softcover, Spiral and NEC Handbooks.

The convenient NEC Spiralbound opens flat for easy reference to the 2014 National Electrical Code at your desk or on the jobsite

2014 NEC Spiralbound with pkg of Tabs LE-14NEC-SB-Tabs $116.95

This Code edition includes major changes such as:

• Expanded AFCI and GFCI protection in homes
• Continued emphasis on making installations safe for electrical workers
• Coverage of new methods to distribute low voltage power
• New approaches toward ensuring safety of photovoltaic (PV) electric systems
• Changes to the long-standing voltage thresholds used in the Code
• Plus hundreds of others that allow for the safe implementation of the latest in electrical system and equipment technology.

2014 NEC Self-Adhesive Tabs -

This set of pre-printed, self-adhesive tabs attach directly to the pages-helping you reference important articles and tables quickly.

Just Peel and Stick. Attractive and Durable. Special Design resists tearing.

For use on Softcover, Spiral and NEC Handbooks.

Choose the 2014 NEC Looseleaf, with a durable 5-ring binder that makes it easy to add job-specific materials or remove or reorganize information.

The performance-boosting NEC Looseleaf lets you insert all the extra technical information and other data you need on an electrical project within relevant sections of the 2014 National Electrical Code.

2014 NEC LooseLeaf w/ pkg Divider Tabs LE-14NEC-LL-Tabs $121.50

This Code edition includes major changes such as:

• Expanded AFCI and GFCI protection in homes
• Continued emphasis on making installations safe for electrical workers
• Coverage of new methods to distribute low voltage power
• New approaches toward ensuring safety of photovoltaic (PV) electric systems
• Changes to the long-standing voltage thresholds used in the Code
• Plus hundreds of others that allow for the safe implementation of the latest in electrical system and equipment technology.

2014 NEC Looseleaf Divider Tabs -

This set of Reusable Looseleaf Divider Tabs insert into the Binder between pages-helping you reference important articles and tables quickly.

For use on NEC Looseleaf version only.

McGraw-Hill National Electrical Code 2014 Handbook -

Designed as a must-have companion to the 2014 NEC book published by the National Fire Protection Association, this comprehensive volume features more than 1,000 detailed diagrams and photos. The authoritative information and insight contained in this on-the-job reference will help your work pass inspection the first time. - more

Applied Codeology Navigating the NEC 2014 -

By: National Joint Apprenticeship and Training Committee (NJATC)

Applied Codeology is an invaluable resource for new learners being introduced to the National Electrical Code^®.

This textbook is not about studying the details of the information within the NEC^®, but instead acquiring the method to qualify the information being sought and understanding the structure of the NEC^®.

This book helps the user know where to start looking for the answers in the NEC^®.

This textbook is structured around the “General”, “Plan”, and “Build” concepts of the NEC^®. - more

Code Check Electrical (7th ed.) -

This revised edition of Code Check Electrical has been completely updated to the 2014 National Electrical Code (NEC), 2011 National Electrical Code (NEC) and 2012 International Residential Code (IRC). Spiral bound with durable, laminated pages, this reliable resource clearly details how to avoid the most common electrical violations while stressing the central safety principles behind the National Electrical Code.

The seventh edition covers every type of residential electrical system, offering the most up-to-date information on grounding, bonding, service panels, branch circuits, GFCIs and AFCIs, switches, receptacles, and so much more.

Common code violations in building, plumbing, mechanical and electrical are explained with the help of 28 tables and 83 illustrations. - more

Commercial & Industrial Wiring, 2E -

This edition is updated to the 2014 NEC®, expands coverage of electrical test instruments and ladder diagrams, includes descriptions of LED lamps and variable frequency drives, and adds a large section on renewable energy system installations.  more.

Packed with high-quality photos and illustrations, DELMAR’S STANDARD TEXTBOOK OF ELECTRICITY, 6e combines comprehensive coverage of basic electrical theory with practical "how to" information that prepares you for real-world practice.

The text covers all aspects of basic theory principles-making it an excellent resource well beyond the introductory course. Its clear presentation uses schematics and large illustrations to bring concepts to life, while examples throughout demonstrate how to do common tasks electricians perform.

Succinct units covering one or two topics make the book easy to digest and the Sixth Edition is updated to the 2014 NEC  - more

The Dr. Watts 2014 Pocket Electrical Guide is UPDATED to reflect the 2014 National Electrical Code.

Containing the latest NEC tables, formulas, illustrations and detailed examples, this an indispensable reference for anyone working with electricity.

This shirt-pocket guide is loaded with essential information for everyday reference; it’s heavy laminated pages and built-in tabs make it sturdy and durable.

Electrical Grounding and Bonding, 4E -

 - a user-friendly, practical guide provides a thorough and effective introduction to the essentials of electrical grounding and bonding.

Written in accordance with the 2014 National Electrical Code®, ELECTRICAL GROUNDING AND BONDING, Fourth Edition, features complete, up-to-date coverage of Article 250 requirements.

The text's detailed explanations, real-world examples, and vibrant, full-color illustrations will help you master and apply key electrical concepts such as calculating conductor sizes, reading and interpreting NEC® tables, using grounded conductor connections in DC and AC systems, and applying "green" practices for energy efficiency and environmental sustainability.

Ideal for students in degree programs, apprenticeships, and professional training such as IEC and NJATC courses, this proven guide is a must-have resource for career success. - more

Packed with precise, step-by-step checklists, detailed illustrations, and informative chapter explanations, the Electrical Inspection Manual, 2014 Edition identifies important Code rules and provides guidance on how-to organize checklists by occupancy type to increase thoroughness and decrease the likelihood of overlooking potential problems.

Identifies Important Electrical Code Rules for a thorough Electrical Inspection in compliance with the 2014 National Electrical Code (NEC)

Written by certified electrical inspectors, and endorsed by the National Fire Protection Association (NFPA) and the International Association of Electrical Inspectors (IAEI), this fully illustrated manual explains significant tasks, defines terms, outlines key questions, and provides a concise overview of the electrical inspection process. - more

Electrical Inspection Certification Program
International Association of Electrical Inspectors (IAEI)

Updated to the 2014 National Electrical Code (NEC)

The IAEI Plan Review Study Guide, 2014 is designed for busy people who are working and studying at the same time. It not only gives you basic answers, but it also teaches you the steps to solve the problems, and how to navigate the National Electrical Code to find the answers quickly and efficiently.

Take the first step in becoming an Electrical Plans Reviewer — help yourself prepare to pass the examination the first time - more

Electrical Systems based on the 2014 NEC is a comprehensive reference and instructional tool for journeyman and master electricians, inspectors, contractors, electrical designers, and others in the electrical trade.

Electrical Transformers and Rotating Machines, 4E -

Written specifically for future electricians, ELECTRICAL TRANSFORMERS AND ROTATING MACHINES, 4e delivers comprehensive coverage that reflects real-world practice.

Extremely student friendly, the book uses common language in a format that is easy to understand.

Offering the ideal blend of theory and hands-on applications, it integrates experiments throughout -- enabling you to put what you learn into practice.

In addition, insightful schematics and illustrations ensure your thorough understanding of key concepts. - more

Offering the most current coverage available, ELECTRICAL WIRING COMMERCIAL, 15e is completely revised and up to date with the 2014 National Electrical Code®.

Extremely reader friendly, the text has long been popular with learners. Vibrant, full-color illustrations and photographs help you easily grasp difficult concepts.

The new edition continues the book's emphasis on newer green technologies and developments within electrical design and installation, including coverage of EV stations in commercial settings. It also offers expansive coverage of safety in the workplace.

ELECTRICAL WIRING INDUSTRIAL, 15E is the complete, step-by-step guide to wiring industrial buildings according to the current 2014 National Electrical Code®.

For anyone learning industrial wiring, EWI is an ideal on-the-job reference for apprentice and journeyman electricians, and anyone working in the electrical field.

ELECTRICAL WIRING INDUSTRIAL,15E presents concise, straightforward information in a practical, task-oriented style. Chapter topics explore all fundamentals, from installing new electrical service and changeovers from old systems to project planning and maintenance procedures.

Delivering the very latest in industry standards and procedures, bestselling ELECTRICAL WIRING RESIDENTIAL, 18e provides comprehensive, authoritative coverage that fully implements the 2014 National Electrical Code®.

The text's signature three-part organization thoroughly covers Code, Electrical Knowledge, and Applications. Extremely reader friendly, it offers detailed--but not overly technical--explanations as it guides you step by step through the critical tasks and responsibilities that face today's professional residential electricians in both new construction and existing homes.

Vivid Illustrations are fully coordinated with the latest NEC® regulations and provide further clarity. In addition, foldout plans at the back of the text give you hands-on practice applying Code requirements. Includes a complete set of residential building plans - more

Included FREE: A download for your Windows PC with all the questions in the book, in an interactive format with the answers and any pertinent code sections popping up with a mouse click.  - more

You'll get a thorough review of the National Electrical Code (NEC), including ways to access exam answers on an open-book basis. Detailed examples and concise explanations make it easy to understand the material, and end-of-chapter quizzes and a final exam help reinforce key concepts - more

2014 NEC Softcover + 2014 Ferm's Fast Finder Combo LE-2014-Ferms-NEC $150.00 $142.50

International Association of Electrical Inspectors (IAEI)

For almost 50 years, Ferm’s Fast Finder has been the leading guidebook, with its comprehensive directions, advice and information, to the National Electrical Code.

Its comprehensive cross-reference index has been meticulously updated to NEC-2014. Each entry, reference and source has been examined for precise detail and ease of use.

FERM’S FAST FINDER NEC 2014 is the Most comprehensive index of the NEC.

It references 19 NFPA codes; 4 ANSI standards; UL Fire Resistance Directory; and UL White Book. If you are a knowledgeable Electrician or Inspector who needs instant information at your fingertips all the time, Ferm’s Fast Finder is for you. - more

International Association of Electrical Inspectors (IAEI)

Based on the 2014 NEC

"Mike Holt's Illustrated Guide to "NEC Requirements for Grounding vs. Bonding" belongs in the hands of every Electrician, Inspector, and Engineer"

The extensive graphics show current flow in both normal and fault conditions, which completely illustrate the proper application of the Code rules.

This new edition continues to expand on the great graphics that have set the standard for the industry. The text beautifully clears up misconceptions about Grounding vs. Bonding and breaks down each of the Code articles that deal with this topic. - more

Protect Yourself and Your Team!

Hazardous Locations, 3E provides Training Materials and Resources to assist those involved with Designing, Installing, Inspecting and Maintaining Electrical Systems in Hazardous (Classified) Locations.

Hazardous Locations - Through photos, illustrations, and thorough explanations, the reader will learn how to safety-proof the most hazardous locations.

Updated to the 2014 NEC

Published by International Association of Electrical Inspectors (IAEI) - more

International Association of Electrical Inspectors (IAEI)

Electrical Inspection Certification Program
Electrical General Study Guide NEC 2014 is based on 2014 National Electrical Code

Questions are formulated to be similar to test formats you are likely to find in the electrical inspector certification examinations.

Electric General Study Guide focuses on the major concepts considered necessary by state and local testing agencies, CEI, ICC, and the Electrical Inspector Certification Program. - more

INDUSTRIAL ELECTRICITY, 9E is the ideal book to help electrical students, as well as maintenance technicians, master the fundamentals of electrical theory as they pertain to the field of industrial electricity.

INDUSTRIAL ELECTRICITY, Ninth Edition, presents the essentials of electrical theory in a clear, current, logical manner to help you master both fundamental concepts and more advanced subjects relevant to the field of industrial electricity.

Coverage begins with foundational topics like electrical symbols and drawings, current, voltage, resistance, and power, while subsequent chapters introduce Ohm’s Law; series, parallel, and combination circuits; and resistive and reactive circuits.

The text also includes thorough discussion of advanced subjects such as rotating machinery, motor controls, transformers, electronic drives, and PLCs, as well as practical information on key real-world applications of electrical theory, including installation, maintenance, and troubleshooting. - more

The Journeyman Electrician's Exam Preparation DVD is a companion to the Journeyman Electrician’s Exam Workbook designed for self-study or instructional use.

It includes 500 sample journeyman licensing questions in a Microsoft® PowerPoint® presentation format.

The questions are based on typical exams given by national testing agencies and cover electrical theory, trade knowledge, and 2014 NEC references.

An exam timer is used to monitor the time allotted to complete a specific exam. - more

The Journeyman Electrician's Exam Preparation DVD is a companion to the Journeyman Electrician’s Exam Workbook designed for self-study or instructional use.

It includes 500 sample journeyman licensing questions in a Microsoft® PowerPoint® presentation format.

The questions are based on typical exams given by national testing agencies and cover electrical theory, trade knowledge, and 2014 NEC references.

An exam timer is used to monitor the time allotted to complete a specific exam. - more

Prepare for the Journeyman's Electrical Exam with over 800 sample and test examination questions and problems based on the 2014 NEC

Journeyman Electrician’s Exam Workbook is designed to help applicants prepare for the journeyman electrician’s examination.

This extremely practical workbook offers an overview of the exam and practical examples involving formulas, NEC®-related problems, and definitions.

Workbook contains over 800 review and sample licensing exam questions and problems. Review question answers with NEC® references and solutions as applicable are included in the workbook. - more

Master Electrician's Exam Preparation DVD Based on the 2014 NEC® -

It includes 500 sample Master licensing exam questions in a Microsoft® PowerPoint® presentation format.

The questions are based on typical exams given by national testing agencies and cover electrical theory, trade knowledge, and 2014 NEC references.

An exam timer is used to monitor the time allotted to complete a specific exam. - more

Narrated by Scott Forde  •  Written by Mark Ode

The 2014 NEC Important Changes DVD has been modified and updated with the National Electrical Code requirements that have changed.

Get the inside scoop on working with the new 2014 NEC code changes.

Approximately 100 minutes - more

2014 NEC Changes DVD Package (Book + 2 DVDs) LE-MH-14CCDVD  $210.00

Over 400 full-color detailed graphics to reinforce those difficult concepts and provide instant understanding of Changes to the 2014 National Electrical Code (NEC)

• Cross references to related Code requirements help you understand how the Code rules relate to one another.
• Background information for each change along with explanations, which are delivered in Mike’s trademark style… easy-to-understand.
• Author’s Comments – These sections were written by Mike to help you better understand the NEC material, and to bring to your attention things he believes you should be aware of.
• Full-color detailed graphics to reinforce those difficult concepts and provide instant understanding. - more

This is an excellent book for Self Study or NEC Code Change classes.

Mike Holt's Electrical Exam Preparation textbook has helped thousands of people across the country pass their exam - The First Time!

The full-color illustrations help guide you through everything you need to know about calculations and help you review the theory that you will have on your exam.

The book is designed for individual or classroom use and helps you learn the material and test your knowledge in each area.

• Comprehensive study of electrical calculations, using step-by-step instructions of how to set up the problems and work through them accurately
• Unit questions to test your knowledge as you progress through the material + Thousands of Code questions to test your knowledge of the NEC

640 Pages, 531 Illustrations, 2955 Practice Questions - more

You save over $1,000 off the individual prices. - more

Includes: Electrical Exam Prep book, the Illustrated Guide to Code Changes, two NEC videos, & five electrical calculations videos. Save over $400 off individual prices. - more

2014 Journeyman Simulated Exam + NEC Exam Prep Book Combo LE-MH-14EPJX $80.00

Suitable for all Electrical Exams based on the NEC, such as: AMP, ICC, Local/State Exam Boards, Professional Testing, Pearson VUE, Prometric, Prov, PSI

This exam was designed to give you experience in taking exams under conditions similar to the actual competency exam and to help you determine which subjects and areas of study that you really need to focus on.

Based on the 2014 NEC, this exam covers the NEC, Electrical Theory, and Electrical Calculations. Includes detailed answer key.

Part 1 - Electrical Theory (100 Questions)
Part 2 - National Electrical Code (105 Questions)
Part 3 - Electrical Calculations (65 Questions)

This program teaches you everything you need from the ground up.

Includes: Electrical Exam Preparation book, three 4.5-hour theory DVDs, the Theory text/workbook, ten 4-4.5 hour NEC DVDs, Understanding the NEC volumes 1 and 2 textbooks, a Simulated Exam, and eight 2-4 hour calculations DVDs. (5 Books + 21 DVDs)

You save over $1,300 off the individual prices. - more

If you need to pass the Master/Contractor Electrical Exam right away, then this program is for you!

Includes: Electrical Exam Prep book, the Illustrated Guide to Code Changes, two NEC videos, & eight electrical calculations videos. Save over $400 off individual prices. - more

2014 Master/Contractor Simulated Exam + NEC Exam Prep Book Combo LE-MH-14EPMX $80.00

Suitable for all Electrical Exams based on the NEC, such as: AMP, ICC, Local/State Exam Boards, Professional Testing, Pearson VUE, Prometric, Prov, PSI,

This exam was designed to give you experience in taking exams under conditions similar to the actual competency exam and to help you determine which subjects and areas of study that you really need to focus on.

Based on the 2014 NEC, this exam covers the NEC, Electrical Theory, and Electrical Calculations. Includes detailed answer key.

Part 1 - Electrical Theory (100 Questions)
Part 2 - National Electrical Code (105 Questions)
Part 3 - Electrical Calculations (65 Questions)

The purpose of the NEC Practice Questions book is to create an ideal environment to test your NEC knowledge. It builds your skills section by section and includes 2,300 NEC questions.

The book includes 10 Quizzes of 100 questions each that are in Code Order and take you through each of the nine chapters of the NEC. There are also 10 additional quizzes where the NEC questions are in random order in order to challenge your NEC knowledge.

There are seven Final quizzes on all chapters of the code that are in random order that help you really get familiar with your code book.

Going through this book really builds your code knowledge and your ability to find things quickly as you proceed. After building your skills you can test your knowledge with the two Final Exams in the back of the book. - more

NFPA 70E® compliance saves lives, reduces liability, and helps avoid unexpected downtime and revenue loss. Now, the 2015 Standard takes another big step in changing the way America works.

In a fraction of a second, an electrical incident can claim lives and cause permanently disabling injuries. In fact, hundreds of deaths and thousands of burn injuries occur each year due to shock, electrocution, arc flash, and arc blast -- and most could be prevented through compliance with NFPA 70E: Standard for Electrical Safety in the Workplace®.

Originally developed at OSHA's request, NFPA 70E responds to the latest information about the effects of arc flash, arc blast, and direct current (dc) hazards, and recent developments in electrical design and Personal Protective Equipment (PPE). - more

NFPA 70E Handbook for Electrical Safety in the Workplace - 2015 -

The 2015 NFPA 70E® Handbook is your comprehensive source for knowledge about NFPA 70E, electrical safety, and compliance.

Many facilities have the potential for significant liabilities involving loss of life, serious injuries, and damage to equipment due to electrical hazards. Yet many company managers and owners are unaware of the electrical risks addressed by NFPA 70E: Standard for Electrical Safety in the Workplace®.

Using NFPA 70E correctly is the key to saving lives, reducing injuries, and satisfying OSHA mandates for electrical safety -- and that's why the NFPA 70E Handbook is essential.

The 2015 NFPA 70E Handbook for Electrical Safety in the Workplace helps you understand the risks and make the right decisions. - more

Electrical Inspection Certification Program - International Association of Electrical Inspectors (IAEI)

The IAEI - 1- & 2-Family Dwelling Study Guide, 2014 is designed for busy people who are working and studying at the same time. It not only gives you basic answers, but it also teaches you the steps to solve the problems, and how to navigate the National Electrical Code to find the answers quickly and efficiently.

So what are you waiting for? With study and focus, you could be ready for the next exam - be it state or certification.

For over thirty years, the IAEI study guides have strived to be the most comprehensive available to prepare you for certification success in 1- and 2-Family Dwelling Electrical Systems, Electrical General, and Electrical Plan Review, or any master electrician or journeyman electrician exams. - more

One and Two Family Dwelling Electrical Systems, 9E

International Association of Electrical Inspectors (IAEI)

Now in its ninth edition, this book explains the design, installation and inspection of electrical systems in new and existing one- and two-family dwellings.

The text covers the subject in detail and meticulously updates the material as it pertains to the 2014 National Electrical Code and the 2015 International Residential Code  - more

Printreading Based on the 2014 NEC -

Printreading has been completely updated to reflect changes in the 2014 NEC^® and maintain its status as an industry standard by incorporating fundamental printreading skills and relevant NEC^® topics.

Different types of prints used in industry are represented throughout the textbook, including plot plans, floor plans, and elevations. Prints are also used in conjunction with code requirements to determine dwelling load calculations.

This textbook serves as both an instructional tool and a valuable technical reference for professionals in the field. (Answer Key sold separately) - more

By: National Joint Apprenticeship and Training Committee (NJATC)

Significant Changes to the NEC^® 2014 is an invaluable resource for electricians, electrical inspectors, electrical contractors, and electrical engineers.

The textbook focuses on the most important changes between the 2011 and 2014 NEC^®.

The textbook is arranged to follow the general layout of the NEC^®, and each change is accompanied by helpful images and illustrations. - more

International Association of Electrical Inspectors (IAEI)

If you are serious about your knowledge and skills, your technical library is incomplete without this book!, - more

Mike Holt’s Illustrated Guide to Understanding the National Electrical Code, Volume 1 has proven itself in the field and in the exam room.

2014 Understanding the NEC Volume 1 & 2 Combo LE-MH-14UND12 $117.50  $105.00

Even common applications make NEC training essential. For example, consider those tables in Article 310. Do you really understand how to size conductors? Do you understand when to use the 90 degree column and when not to? Do you know when to use Table 310.17 rather than 310.16, or 310.19 rather than 310.17? How do you apply these tables when sizing feeders for motor circuits? What about motor branch circuits? A wrong answer to any of these questions can be costly.

624 pages, 1302 Illustrations, 214 Practice Questions

This workbook printed in full color contains more than 1,200 NEC Practice questions in Code order that follow the 2014 Understanding the NEC Volume 1 textbook along with two random order final exams.

Also included is a recommended customizing list for your NEC Code Book.

224 pages,
1210 practice questions

2014 Understanding the NEC Volume 1 & 2 Combo LE-MH-14UND12 $117.50  $105.00

Understanding the NEC Volume 2, 2014 Edition was written to provide insight into, and an understanding of, many of the technical rules of the NEC. This textbook, printed in full color, covers Article 500-820. Based on the 2014 NEC.

Subjects include: Hazardous (Classified) Locations, Motor Fuel Dispensing Facilities, Health Care Facilities, Manufactured Wiring Systems, Swimming Pools, Fountains and Similar Installations, Emergency Systems, Optical Fiber Cables and Raceways and more.

This book is the companion volume to Understanding the NEC Volume I

Work safely and efficiently on motors and controls when you have the new Ugly’s in your toolbox!

Based on the 2014 National Electrical Code (NEC)

Ugly’s Electric Motors and Controls 2014 is a quick, on-the-job reference specifically designed to provide the most commonly required information on the design, installation, application, and maintenance of motors and controls in an easy-to-read, easy-to-access format.

An ideal tool for electrician’s, contractors, designers, engineers, instructors and students, this essential pocket guide uses diagrams, calculations, and quick explanations to ensure jobs are completed safely and correctly and in accordance to industry standards. - more

Uglys Electrical Reference Book (2014) -

A 'must-have' Electrical Reference for anyone that does Electrical Work - keep one in the Office and one on the Truck!

Electrical Formulas, Conversion Tables, Symbols, Charts, Wiring Diagrams, Conduit Bending and more. All in an easy to read format.

Ugly's Electrical References book is a popular pocket-sized book used by electricians, engineers, contractors, designers, maintenance workers, instructors, and the military.

It is a code-filled reference based on the 2014 NEC - more

>> Tools for Electricians <<

UGLY's Reference Series