Charles R. Miller has taught classes and seminars covering various aspects of the electrical industry, for 18 years. Mr. Miller owned and operated Lighthouse Electric Co., Inc. in Nashville, TN. In 1988, he began a second company dedicated to electrical training, Lighthouse Educational Services. In 1999, Mr. Miller wrote and illustrated a nationally published textbook on the NEC titled Illustrated Guide to the National Electrical Code. In 2001, he was contracted by NFPA to write two more pocket guides for the NEC. In addition to writing and illustrating, Mr. Miller is a co-host for a home improvement radio show in Nashville.