For 18 years, Charles R. Miller owned and operated a successful commercial electrical contracting company (Lighthouse Electric Co., Inc.) in Nashville, Tennessee. Now an accomplished author and educator, Mr. Miller specializes in leading customized seminars on the National Electrical Code (NEC), as well as National Fire Protection Association (NFPA) 70E. Class and seminar attendees have included individuals employed by companies such as Ford, A. O. Smith, The Aerostructures Corporation, and academic institutions such as Tennessee State University, Vanderbilt University, and Purdue University.