The textbook is intended for everyone who seeks to master the technique of object-oriented programming based on the C++ programming language. The book will teach not just programming, but developing safe and flexible programs suitable for new applications. The focus is on building grounded object and class hierarchies, composing abstract interfaces, and universal method signatures. The publication will help novice programmers grow to the level of professionals, and will also become an excellent base for a modern course in object-oriented programming in specialized higher educational institutions.