The book “Internal Routing Protocols: OSPF and EIGRP: A Training Manual” by Vladimir Tsvetkov is an indispensable resource for everyone who seeks to deepen their knowledge in the field of network technologies and routing . With the rapid development of information technology and the growing need for high-quality network infrastructure, this manual is becoming a key tool for students, engineers and network specialists. In this book, the author examines in detail the two most popular internal routing protocols - OSPF (Open Shortest Path First) and EIGRP (Enhanced Interior Gateway Routing Protocol). Tsvetkov not only explains the theoretical basis of the work of these protocols, but also offers practical recommendations for their implementation and configuration. Readers will be able to learn how to effectively use OSPF and EIGRP to optimize routing on their networks, as well as how to cope with emerging problems. The book will be interesting for both beginners and experienced professionals . Students of technical universities studying in specialties related to information technologies will find useful materials in it for preparing for exams and performing coursework . Engineers and network administrators seeking to upgrade their skills will be able to deepen their knowledge and gain practical skills that will help them in their day-to-day work. The topics raised in the book cover a wide range of issues related to internal routing. Tsvetkov pays attention not only to the basics of the protocols, but also to their features, advantages and disadvantages. It also looks at OSPF and EIGRP application scenarios in various network topologies, allowing readers to better understand how to choose the most appropriate protocol depending on specific conditions. The author's style is distinguished by clarity and accessibility of presentation, which makes the material understandable even for those who are just beginning to get acquainted with network technologies. Flowers uses many examples and illustrations, which helps the reader to visualize complex concepts and learn them in practice. His previous works, such as “Fundamentals of network technologies” and “Routing in modern networks”, also earned recognition and popularity among specialists, which confirms the high qualification of the author. The book “Internal Routing Protocols: OSPF and EIGRP” not only provides theoretical knowledge, but also includes practical tasks that will help readers to consolidate the material studied. This makes the manual ideal for self-study, as well as for use in educational institutions. Readers will be able not only to familiarize themselves with the theory, but also to put their knowledge into practice, which is an important aspect in teaching . If you are looking for information about network protocols, routing, and also want to improve your skills in the field of information technology, this guide will be a real find for you In it you will find answers to many questions related to OSPF and EIGRP, as well as receive valuable advice on their setup and optimization. Do not miss the opportunity to expand your knowledge and skills in the field of network technologies with the help of the book by Vladimir Tsvetkov .