The reference book contains graphic symbols of circuit elements, taking into account the changes made to the standards. There are general requirements for the construction and design of various types of diagrams, regulating the location and dimensions of the symbols. Particular attention is paid to the implementation and design of principal schemes as the most complex and more common in the practice of design work. Calculated on engineering and technical workers related to the implementation and use of electro-radio circuits can be useful for university students.