Computer Networks: An Algorithmic Approach is designed for undergraduate and early postgraduate students in computer science and electronics/telecommunications. It goes beyond explaining what protocols do by focusing on how they work through an algorithm-centric approach. Core topics such as routing, switching, congestion control, and network security are presented using clear, step-by-step methods that support problem-solving, design, analysis, and implementation. The book also covers modern developments including software-defined networking (SDN), cloud and edge networking, IoT, and 5G, along with dedicated sections on AI for computer networks and blockchain networking.