2017 Understanding the National Electrical Code, Vol. 1 textbook

I am a newer electrical inspector and your products have made a monumental task relatively easy in understanding concepts and correct installations.

Rich Perlman

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Excellent material that makes it easy to understand the Code.  The material was exactly what I needed to pass my exams. 

​Josue G.

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This is solid NEC Training; it will make for better-trained Apprentices and happy employers. 

J. Helbirg

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I studied Mike Holt back in 1990 to pass my Dade County master exam. What a dishonor I've done to my self by not continuing to learn. This Understanding The National Electrical Code Volume 1,2 is the most incredible Code learning system ever written Thank you for advising me to purchase this. And tell Mike that he has used God's gift perfectly. Thank you.

Nathan Villar

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I have been teaching code classes at our community college (Cuesta) for the past several years. This year I decided to use some of your books as a teaching aid for my NEC class. What a pleasant surprise - Understanding the NEC is the greatest. The illustrations are clear and easy to understand. I am finding when a student is having trouble grasping a concept, I can simply hand them the book, and it becomes clear to them what I am trying to convey. It’s like having a code specialist with me in the classroom.

Clyde Ganes

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Finished the third successful training session today. All 35 students loved the Understanding Electrical Code Part 1 textbook. Recommended Mike's products to all who attended. Best wishes!

John F. Kaldon

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Continue to write comments next to the graphics. I have been using your training material for the last 12 years not only to understand the Code but to clearly discuss projects.Keep up the good work.

Dominique Gagne

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I find that all Mike Holt products and articles are the most professionally and clearly presented of anything on the market. I particularly like the distinctive styles of the illustrations in Understanding the NEC.

Harold Curtis

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We instructors of Northeast State's Electrical Technology program could not be more pleased. You will always have our business. The students love the Understanding NEC text book and your website.

Steve R. Smith