Tom Henry Electrical books. Learn the ins and outs of becoming an electrician or enhance your knowledge with this great set. Tom and his son offer some of the best study books on the market. Also included is a book on Photovoltaics (Solar) and a 2 disk set on HVAC electrical. Please see picture for all of the titles included. These books include hundreds of study questions and answers and are designed to teach with visual examples. Great study guides. Retail value for this set is over $500, asking $300. New books, great condition.