This book explores the emerging paradigm of self-healing networks-digital infrastructures that can automatically detect, diagnose, and repair faults without human intervention. With growing reliance on uninterrupted connectivity across sectors like healthcare, smart cities, military, and autonomous systems, network resilience has become critical. The book explains key concepts such as fault tolerance, robustness, survivability, and adaptability, and shows how these are achieved through technologies like AI/ML, SDN, NFV, edge computing, blockchain, and digital twins. It outlines practical...