"Computer Networks" is an accessible and comprehensive guide tailored for individuals with varying levels of expertise in computer science, offering a holistic exploration of the intricate world of networking. Designed for beginners and seasoned professionals alike, this book delves into the fundamental concepts, protocols, and technologies that underpin modern computer networks. Through clear explanations, practical examples, and real-world applications, readers will gain a deep understanding of how data is transmitted, routed, and managed across networks, from local area networks (LANs) to wide area networks (WANs) and beyond. With a focus on practicality and relevance, this book equips readers with the knowledge and skills needed to design, implement, and troubleshoot networks effectively, making it an invaluable resource for students, practitioners, and enthusiasts in the field of computer networking.