The book “Mathematical and Algorithmic Foundations of Object-Oriented Programming Systems”, written by a team of authors, is a unique work that immerses the reader in the exciting world of programming based on an object-oriented approach. This work is not just a textbook, but a real find for those who seek a deeper understanding of both mathematics and algorithms that underlie modern software systems. The book covers a wide range of topics, ranging from basic mathematical concepts to complex algorithmic structures that are the basis for creating effective and reliable programs. It explores key aspects of object-oriented programming (OOP), such as encapsulation, inheritance, and polymorphism, making it an indispensable resource for undergraduate, graduate, and practicing programmers. Readers interested in programming, mathematics and algorithms will find in this book not only theoretical knowledge, but also practical examples that will help to consolidate the material. It will be especially useful for those who want to develop skills in software development, as well as for those who are ready to learn more complex concepts in computer science. If you are a computer science student or a professional who wants to expand your knowledge of modern programming methods, this book will become a real guide for you. The topics raised in the book cover not only technical aspects, but also philosophical reflections on how to properly organize the code and structure of programs. The authors emphasize the importance of the mathematical approach in programming, which allows readers not only to learn how to write code, but also to understand how it works at a deeper level. This makes the book especially valuable for those who want to become not just an executor, but a real architect of software solutions. The style of the authors is distinguished by clarity and accessibility, which makes it easy to assimilate even the most complex concepts. They use many examples and tasks, which helps the reader not only theoretically to understand the material, but also to apply it in practice. This approach makes the book interesting and fascinating, and also contributes to a better understanding of the subject. If you are looking for literature that will help you master the basics of object-oriented programming from a mathematical point of view, then "Mathematical and algorithmic foundations of object-oriented programming systems" will be an excellent choice. It can be compared to other well-known works in the field of programming, such as "Object-oriented programming in C++" or "Algorithms: construction and analysis" of Corman. This book will not only deepen your knowledge, but also inspire new ideas and projects. It will become a reliable companion on the way to mastery in programming, opening up new horizons and opportunities for you. Do not miss the chance to immerse yourself in a world where mathematics and algorithms become the basis for creating amazing software solutions!