Over the years, radiation therapy has had both remarkable successes in saving lives and a number of silent struggles for the patient. This text is not about turning away from radiation therapy; it’s about using it thoughtfully and recognizing that not every patient needs the same path. In an era where oncology is moving rapidly towards personalization, radiation therapy should have evidence-driven use. The editors and authors have brought together evolving ideas, research, and case experiences to help clinicians think differently, treating each patient as an individual, not just a diagnosis, and to invite them to pause, to question and to reimagine how to plan treatment — always with the patient’s best interests at heart. This book will serve as a guide for oncologists, radiation specialists, surgeons and clinical researchers, providing new frameworks for integrating no radiation therapy (NO-RT) strategies into modern cancer care.