Mike Holt's Master/Contractor Intermediate Training Course, 2020 NEC Proven to work. Hundreds of electricians have used the Mike Holt exam prep course to sail through their exams and advance their career. You can, too. Pass your 2020 Master/ Contractor Exam on your first attempt by preparing properly with this exam prep course. This package assumes you know electrical theory, so that is not included. Improve your understanding of the NEC, load calculations, overcurrent protection, and conductor sizing. Work sample exam problems and build your test-taking abilities. Master voltage drop, dwelling, multi-family dwelling, and other calculations from the Master Contractor Exam. If you have a solid understanding of electrical theory from fairly recent study, this exam prep package is probably your best bet for the 2020 Master Contractor Exam. Mike Holt, NEC expert, and one of the top electrical Instructors in the United States, walks you through the 2020 NEC Changes and gives you in-depth training on all the Electrical Calculations that you will need to pass your exam. This package includes Mike's best-selling full-color Exam Preparation textbook that will give you a review on Theory, in-depth training for Electrical Calculations, and over 2,500 NEC questions. You'll also receive Mike's 2020 Changes to the NEC DVD course to give you the information you need to know about all the important changes to the 2020 code cycle. Mindconnection, LLC is an authorized dealer of Mike Holt products and has helped develop many of them. When you buy from us, you get the real deal.