... Perhaps I will not be mistaken if I say that in the book of Yu. S. Stolyarov for the first time a set of questions was developed on the development of modern technology by students, the topics of work were deeply scientifically and pedagogically correctly selected, the main directions in technical creativity were given. We can express confidence that this book will be a good assistant to the teacher, 'the head of the technical circle, a pioneer leader in organizing and further developing the technical creativity of students in the new Soviet school...