This workbook serves as a practical companion to the 2011 Understanding the NEC, Volume 1 textbook. It contains over 1,300 practice questions organized by Code order, designed to reinforce learning from the textbook. Additionally, it includes two comprehensive random-order final exams to assess overall comprehension. A recommended customizing list for the NEC Code Book is also provided to aid users in navigating and referencing the material more effectively.

This workbook is designed as a direct supplement to Mike Holt's 'Understanding the NEC, Volume 1' textbook, focusing on the 2011 edition of the National Electrical Code. Its structure, with practice questions and final exams, indicates a pedagogical approach aimed at reinforcing knowledge and testing comprehension for individuals studying electrical codes. The inclusion of a customizing list for the NEC Code Book suggests a practical, user-oriented design to facilitate learning and application.