Abstraction, abstraction is one of the components of the thought process of a creative person. For the development of this component of thinking in the process of teaching computer science, there are additional opportunities, since knowledge of abstract data types, the ability to operate with them is a necessary element of the professional culture of a specialist associated with the development of software complexes. For schoolchildren, computer science teachers and junior university students. The book can be used during elective classes and in-depth study of computer science.