The book *"Information Support of the Lifecycle of Mechanical Engineering Products: Principles, Systems, and Technologies of CALS/IPI"* by Anatoly Nikolaevich Kovshov is an indispensable resource for students, graduate researchers, and professionals working in the fields of mechanical engineering and information technology. In this comprehensive guide, the author delves deeply into the world of CALS (Continuous Acquisition and Lifecycle Support), revealing its core principles, systems, and cutting-edge technologies that are vital to modern manufacturing processes. This book offers an extensive analysis of how information support is integrated at every stage of a product’s lifecycle—from conceptual design and development to production, operation, and disposal. With years of experience in both mechanical engineering and IT, Kovshov shares valuable insights and practical knowledge, making this publication not only theoretically rich but also highly applicable in real-world scenarios. Readers will learn how contemporary information systems help optimize processes, reduce costs, and enhance product quality. A particularly intriguing aspect of this book is the author’s approach: he doesn’t just describe existing technologies but also presents his perspectives on their future development. Kovshov emphasizes the importance of integrating information systems into manufacturing workflows, making this work especially relevant for professionals eager to stay ahead of the latest trends in engineering and digital transformation. Those interested in digitalization, automation, and lifecycle management will find numerous innovative ideas and practical recommendations within these pages. Who will benefit most from this guide? Primarily, it is designed for students of technical universities studying mechanical engineering, information technology, and related disciplines. Graduate students and early-career researchers working on CALS projects and information support will also find it highly valuable. Industry professionals involved in developing and implementing new manufacturing technologies will discover useful insights to improve their work. Overall, this book is an excellent resource for anyone seeking to deepen their understanding of information technologies and their application in the engineering sector. The topics covered are broad and include data management, system design, the interaction between different lifecycle stages, and much more. Kovshov highlights the importance of a systems approach and the integration of various technologies, which are crucial in today’s manufacturing landscape. He also explores the impact of emerging technologies such as artificial intelligence and big data on product development and production processes. Kovshov’s clear and accessible writing style makes complex concepts understandable, even for those new to the subject. His previous works have been well received in academic circles, and this publication continues his tradition of high-quality, engaging exposition. If you are seeking information on modern methods and technologies in mechanical engineering, aiming to enhance your skills, or looking to understand the principles of lifecycle information support, *"Information Support of the Lifecycle of Mechanical Engineering Products: Principles, Systems, and Technologies of CALS/IPI"* will be your reliable guide. Don’t miss the opportunity to expand your knowledge and explore the rapidly evolving field of digital manufacturing!