Mike Holt's Illustrated Guide to Understanding the NEC Volume 1, 2011 Edition
DEWALT Electrical Licensing Exam Guide, Based on the NEC 2011 (DEWALT Series)
NFPA 70®: National Electrical Code® (NEC®), 2011 Edition
Mike Holt's Illustrated Guide to Understanding the National Electrical Code, Volume 1, Articles 90-480, Based on the 2014 NEC
The Electrical Foreman's Handbook
Mike Holt's Electrical Formulas with Sample Calculations
2011 National Electrical Code Fast-Tabs (For Softcover, Spiral, Looseleaf and Handbook)
Electrical Exam Preparation
Mike Holt's Illustrated Guide to Grounding versus Bonding 2011 Edition w/Answer Key
Mike Holt's Illustrated Guide to Electrical Exam Preparation, Based on the 2014 NEC