Readers are invited to read a book by the outstanding Russian engineer and philosopher P.K. Engelmeyer (1855--1939), the founder of a new section of philosophical research called "philosophy of technology." The book explores the theory of creativity, and technical creativity is close to scientific, philosophical and artistic. The author analyzes in detail the nature of the creative process in technology, art, science, religion and everyday life. A large place in the book is occupied by the theory of the so-called "three-act," consisting of three stages, which, according to the author, are repeated in all inventions - desire, knowledge and skills.