The expansion of the STL library for C++. Sets and Iterators is a unique work created by a team of authors that immerses the reader in the world of the standard template library (STL) of the C++ language. This edition will be an indispensable assistant for both novice programmers and experienced developers seeking to deepen their knowledge and expand the possibilities of using STL in their projects. On the pages of the book you will find a detailed and accessible explanation of the concepts of sets and iterators, which are the basis for working with data in C++ . The authors not only describe the theoretical aspects, but also offer practical examples that allow to consolidate the acquired knowledge. You will learn how to effectively use containers such as vectors, lists and sets, as well as how to manage data using iterators, which makes working with collections more intuitive and convenient. This book will be interesting to a wide range of readers .. Students and graduate students studying programming will find in it useful materials for the performance of term papers and diploma papers . Professional developers working in the field of software development will be able to enrich their skills and increase productivity using the advanced capabilities of STL. In addition, the book will be useful for those who want to prepare for interviews with IT companies, since knowledge of STL is often an important part of questions related to algorithms and data structures. The topics raised in the book cover not only the basics of working with sets and iterators, but also more complex concepts, such as algorithms working with these data structures. The authors emphasize the importance of understanding the internal structure of STL and its mechanisms, which allows developers to create more efficient and optimized applications. The book also touches on performance issues, which is especially relevant in the context of modern software requirements. The style of the authors is distinguished by clarity and logical presentation, which makes the material accessible to perception. They use many examples and tasks that will help the reader not only to understand, but also to apply the knowledge gained in practice. The book is written taking into account current trends in programming and contains tips on optimizing code, which makes it especially valuable for developers seeking to improve their skills. If you are looking for C++ programming books to help you master STL and its extensions, you can pay attention to works such as Stanley Lippmann's "C++ Primer" or Scott Meyers' "Effective STL". These books also offer a deep understanding of the language and its capabilities, however "Expanding the STL library for C++. Sets and Iterators" stands out for its practical orientation and accessibility of the material. In conclusion, "Expansion of the STL library for C++. Sets and Iterators” is not just a textbook, but a real find for anyone who wants to deepen their knowledge in C++ and learn how to use a standard template library at a new level. This book will be your reliable companion in the programming world, opening up new horizons and opportunities for you. Don’t miss the chance to take a step forward in your developer career!