Transistor-Transistor Logical Circuits by E. Shagurina is a fascinating and deep immersion in the world of electronics, which will be interesting for both novice engineers and experienced specialists. In it, the author shares his extensive experience and knowledge, allowing readers to understand the complex concepts associated with the design and implementation of logic circuits based on transistors. From the first pages of the book, the reader finds himself at the center of an exciting journey through the basics of transistor-transistor logic (TTL). Shagurin masterfully explains how transistors work, their role in digital circuits, and how they can be used to create various logical elements. The book covers a wide range of topics, ranging from the basic principles of transistors and ending with more complex aspects of the design of logic circuits. The reader will learn about different types of logical elements, such as inverters, AND- and OR-elements, as well as methods of combining them to create more complex digital devices. This book will be especially useful for students of technical universities, graduate students and anyone interested in electronics and information technology. It will be a great help for those who want to deepen their knowledge in the field of digital circuit design, as well as for practicing engineers seeking to update their knowledge about modern technologies. If you are passionate about electronics, programming or robotics, then “Transistor-transistor logic schemes” will be a real find for you. The topics raised in the book cover not only technical aspects, but also philosophical issues related to the development of technology. Shagurin raises important questions about the impact of digital technologies on modern society and how they change our approach to solving everyday problems. Readers will be able to reflect on how the logic they learn affects the world around them, and how they can use this knowledge to create innovative solutions. The author's style is distinguished by clarity and accessibility, which makes complex topics understandable even for those who are just starting their way in the world of electronics. Shagurin uses many illustrations and examples, which allows the reader to easily digest the material and apply it in practice. His previous works have also been recognized for their practical focus and ability to inspire readers to new advances in technology. The book “Transistor-transistor logic schemes” is not just a textbook, but a real guide to the world of digital electronics. It will become an indispensable resource for anyone who wants to understand how modern devices work, and how they can be used to solve real problems. If you are looking for inspiration and knowledge that will help you become an electronics professional, this book should definitely take a place on your shelf. Whether you are a student, a practicing engineer, or simply an enthusiast who wants to learn more about transistor-transistor logic circuits, you will find plenty of useful information and practical advice in this work. Do not miss the opportunity to plunge into the exciting world of electronics with E. Shagurin!