Color Coded EZ Tabs for the 2020 National Electrical Code
National Electrical Code 2020 Handbook (National Electrical Code Handbook)
Ugly's Electrical References, 2017 Edition
2018 NFPA 70E®: Standard for Electrical Safety in the Workplace®
Delmar's Standard Textbook of Electricity
2017 National Electrical Code NEC Quick-Card
National Electrical Code NEC Paperback by NFPA, Fast Tabs, Quick Card and Ugly's Electrical References 2017 Editions
NFPA 72, National Fire Alarm and Signaling Code 2019 (NFPA 72: National Fire Alarm and Signaling Code Handbook)
National Electrical Code 2017