The book "Methodical manual on the courses "Applied Programming" and "Protection of Information in TCS" for students of specialty 450103" by B. A. Aksenova is an indispensable resource for students studying applied programming and the basics of information protection in modern technological systems. This tutorial not only serves as a learning material, but also offers a deep dive into the current aspects of information technology, making it particularly valuable for future IT professionals. In this guide, the author shares his knowledge and experience, offering readers a structured approach to the study of complex topics. The book covers the key concepts and techniques necessary to understand applied programming, as well as important aspects of information security, which is especially important in the context of the rapid development of technology and increasing threats to cybersecurity. Aksyonov focuses on the practical application of knowledge, which allows students not only to master the theory, but also to develop the skills necessary for successful work in real conditions. The manual will be of interest to students studying in the specialty 450103, as well as to anyone who seeks to deepen their knowledge in the field of programming and information security. It is suitable for both beginners and those who already have basic knowledge and want to expand their horizons. If you are interested in data protection, programming in different languages, and also want to understand modern methods of ensuring information security, this book will be your faithful assistant. Topics raised in the manual range from basic programming to complex concepts of information protection. In. A. Aksyonov considers both theoretical aspects and practical problems, which allows readers not only to study the material, but also to apply it in practice. The book includes many examples, tasks and exercises, which makes the learning process more fun and productive. Particular attention is paid to current technologies and methods used in the field of information security, which allows students to be aware of the latest trends in the industry. The author's style is distinguished by clarity and accessibility of presentation, which makes complex topics understandable even for beginners. In. A. Aksenov is an experienced teacher and practitioner who knows how to convey information to students . His other well-known works are also devoted to programming and information technology issues, and they have earned recognition among students and faculty. Thanks to his experience, the author creates not just a tutorial, but a whole system of knowledge that will be useful throughout his career. The book "Methodical guide to the courses "Applied Programming" and "Information Protection in TCS" for students of specialty 450103" is not just a set of theoretical knowledge, it is a practical guide that will help you become a real specialist in the field of information technology . If you want to develop your programming skills and learn how to protect information in today’s environment, this tutorial is your first step towards success. Do not miss the opportunity to get acquainted with this unique resource, which will become your reliable assistant in the IT world