The book "System Services z/OS UNIX" by Evgeny Galyamov is an indispensable guide to the world of the z/OS operating system, which is especially relevant for professionals in the field of information technology and system administration. If you want to understand more deeply how system services work in the UNIX environment on the IBM z/OS platform, then this publication will be a real find for you. In his book, Galyamov not only describes the technical aspects, but also immerses the reader in the context of the use of system services, which makes the material more accessible and understandable. The author shares his experience and knowledge, which allows readers not only to learn the theoretical foundations, but also to apply them in practice. The book covers a wide range of topics, including process management, file systems, networking, and security. Each section is imbued with practical examples, which allows the reader to better assimilate the material and see how theoretical knowledge is applied in real-world conditions. This book will be of interest not only to system administrators, but also to developers working with z/OS, as well as students and graduate students studying information technology. It is suitable for both beginners and experienced professionals who want to update their knowledge or understand new aspects of system services. If you are looking for information on how to optimize your work with UNIX systems, how to effectively manage resources and ensure data security, then “System Services z/OS UNIX” will become your reliable assistant. The topics raised in the book cover not only technical aspects, but also the philosophy of working with systems. Galyamov emphasizes the importance of understanding the z/OS architecture and its features, which allows readers to understand how to configure and use system services to achieve maximum efficiency. The book also addresses the integration of z/OS with other systems and platforms, making it relevant in today's multi-platform world.. The author's writing style is distinguished by clarity and accessibility. Galyamov is able to explain complex things in simple language, which makes reading fascinating and informative. His previous works, such as Basics of Administration z/OS and Programming on z/OS, have also received positive reviews for their practical focus and depth of presentation. Readers appreciate his ability to connect theory with practice, making his books not only tutorials, but also practical guides. If you are looking for books on system administration, UNIX, z/OS or just want to expand your knowledge in the field of information technology, "System Services z/OS UNIX" will be a great addition to your library. This book will not only enrich your knowledge, but will also help you become a more confident specialist in your field. Do not miss the opportunity to immerse yourself in the world of system services and discover new horizons in working with z/OS!