The book "Laboratory works (workshop) on the discipline "Operational materials" for students of specialty 37 01 01 - "Engines" by Brench, M. P. , Parmon, R. I. , and Ancestor, A. In. is an indispensable resource for students and professionals seeking to deepen their knowledge in the field of operation and selection of materials for engines This publication will be a reliable assistant in the study of the theoretical foundations and practical aspects related to operational materials that play a key role in the functioning of modern engines. The book is a practical guide that covers a wide range of laboratory work aimed at studying the characteristics and properties of various materials used in engine construction. The authors, with significant expertise in materials science and engineering, offer readers a unique approach to learning that combines theory and practice. Each laboratory work includes clear instructions, necessary materials and equipment, as well as the method of conducting experiments, which allows students not only to master theoretical knowledge, but also to apply them in practice. This book will be especially useful for students of technical universities studying in the specialty "Engines", as well as for graduate students and young professionals seeking to expand their knowledge in the field of materials science. It is suitable both for self-study and for use in the educational process. Teachers will also find valuable materials in it for organizing laboratory classes and seminars. The topics raised in the book cover key aspects, such as the choice of materials for various engine components, their physical and mechanical properties, and test and analysis methods. The authors emphasize the importance of the correct choice of operational materials, which can significantly affect the efficiency and durability of engines. In the context of modern engineering, where the requirements for reliability and performance are constantly growing, knowledge about the properties of materials becomes critically important. The style of the authors is distinguished by clarity and accessibility of the presentation, which makes the material understandable even for those who are just starting their way in this area. Brench, M. P. , Parmon, R. I. and Ancestor, A. In. experienced teachers and practitioners, which allows them to share not only theoretical knowledge, but also the practical experience that they have accumulated over the years of work in the industry and scientific activities . The book "Laboratory work (workshop) on the discipline "Operational materials"" will be an excellent addition to the library of each student and specialist in the field of engine building It will inspire experimentation and research, open new horizons in understanding the materials used in engines, and help develop the skills necessary for a successful career in this dynamic field. If you’re looking for quality operating materials literature that combines theory and practice, this book will be your faithful companion. It will help you not only in your studies, but also in your future professional activities, providing confidence in choosing the right materials for your projects. Do not miss the opportunity to expand your knowledge and skills with this unique workshop!