The book "Applied Mechanics . Formation of raw data for calculation of mechanical gears" edited by B. and . Half-inkina is an indispensable source of knowledge for students, graduate students and specialists working in the field of mechanics and engineering. In this edition, the team of authors offers readers a deep dive into the theory and practice of forming the initial data necessary for calculating mechanical transmissions, which makes it relevant both for the educational process and for professional activities. The main purpose of the book is to provide the reader with clear and accessible methods to correctly determine the parameters of mechanical systems. It addresses key aspects, such as material selection, load calculation and geometric characteristics, which form the basis for the creation of reliable and efficient mechanisms. The authors emphasize the importance of the accuracy of the initial data, because it depends not only on the performance, but also the safety of mechanical systems. The book will be of interest to students of technical specialties who study applied mechanics, as well as engineers and designers involved in the design and calculation of mechanical gears. It will be useful for those who seek to deepen their knowledge in the field of mechanics, as well as for practitioners who want to update their skills and become familiar with modern approaches to the calculation of mechanical systems. The topics raised in the book cover a wide range of issues, from the basics of mechanics to complex calculations related to the dynamics and statics of systems. The authors pay special attention to practical examples, which allows the reader not only to understand the theoretical foundations, but also to see their application in real conditions. This makes the book not just a tutorial, but a real practical guide that can be used in everyday work. The style of presentation in the book is clear and logical, which makes it easy to assimilate even the most complex concepts. The authors use visual illustrations and diagrams that help to visualize the material and make it more accessible to perception. This approach is especially valuable for students who are just beginning to get acquainted with applied mechanics, as well as for professionals who need to quickly refresh their knowledge. In addition, B. and . Polovinkin as editor and author of several other works in the field of mechanics and engineering, such as "Fundamentals of Mechanics" and "The Theory of Mechanisms and Machines", brings to the book his rich experience and deep knowledge. This creates additional value for the reader, who can be sure of the quality and relevance of the submitted material. The book "Applied Mechanics . The formation of raw data for the calculation of mechanical transmissions" is not just a textbook, but a real find for anyone interested in mechanics and engineering. It will become a reliable assistant in learning and work, as well as a source of inspiration for future engineers and designers. If you are looking for high-quality literature on applied mechanics, which will help you understand the intricacies of calculating mechanical systems, then this publication should definitely take its rightful place on your bookshelf.