The book "Basics of XML-technologies: a textbook" edited by Gennady Petrovich Tokmakov is an indispensable resource for everyone who seeks to understand and master the world of XML-technologies more deeply. With the rapid development of information technologies and constant updating of standards, this manual becomes a real guide to the basics and nuances of working with XML, providing the reader with all the necessary knowledge for the successful application of these technologies in practice. XML (e. Xtensible Markup Language is a universal markup language that has found wide application in various fields, from web development to data exchange between systems. The book covers key aspects of XML, ranging from basic concepts to more complex topics such as schemas, transformations, and working with various tools. Readers will be able to learn how XML is used to structure data, as well as how it interacts with other technologies such as XSLT and XPath. This book will be of particular interest to students, graduate students and specialists in information technology, programming and web development. It is suitable for both beginners and those who already have some experience with XML and want to deepen their knowledge. Teachers and practitioners will also find in this manual useful materials for their courses and projects. The topics raised in the book cover not only the technical aspects of XML, but also its application in real-world scenarios. The authors consider examples from practice, which allows readers to see how theoretical knowledge can be applied in real life. This makes the material more accessible and understandable, and also helps to develop critical thinking and problem-solving skills. The style in which the manual is written is clear and logical. The authors seek to explain complex concepts in a simple and accessible language, making the learning process more fun and less tedious. The book is full of illustrations, code examples and practical tasks, which allows readers not only to assimilate the theory, but also to immediately apply the knowledge gained in practice. Gennady Petrovich Tokmakov is a well-known specialist in the field of information technology, and his experience and knowledge make a significant contribution to the quality of this training manual. He is also the author and editor of other popular books and educational materials, which confirms his authority in this field. Readers familiar with his work can expect the same level of professionalism and depth from this book. If you are looking for an XML tutorial that will be not only informative, but also practical, then “Basics of XML Technologies” is exactly what you need. This book will be an excellent addition to your library, as well as a reliable assistant in the study and application of XML technologies. Do not miss the opportunity to immerse yourself in the world of XML and discover new horizons in the field of information technology!