The book contains wealth of information’s for medical surgical and radiation oncologists, as well as non onco physicians’ oncology nurses, pharmacists medical students. It can be read and understood by many patients and their attendants who want information about their cancer and what Chemotherapy they have been prescribed by his or her oncologist. Chemotherapy has been long time aspiration for many of the people engaged in Cancer research and treatment. This book is a new ray of hope for those people. Current trends which are exploring radiotherapy alone and combine with chemotherapy continue to offer a realistic control of cancer in the decade ahead.  Chapters on radiotherapy and chemotherapy include clinically relevant new understanding. Initial chapters in this book will try to clear the basic concepts of radiotherapy and radiotherapy planning. Section of Radiobiology is real backbone to understand radiotherapy as well as chemotherapy in the management of cancer.