The book provides general information about the design. Illustrated with examples of the technique for performing design work of small electrical installations: drawing up and analysis of diagrams, selection of materials and equipment, its layout, assessment of the cost of work. The second edition was published in 1965. The 3rd edition took into account the comments and wishes of readers, as well as clarifications in accordance with GOST in force on January 1, 1980, Rules, Norms, catalogs, price lists and price tags. The book is intended for a wide range of electricians, craftsmen and electrical technicians serving electrical installations. It can be useful for students of vocational schools and technical schools.