This is a teaching, educational, informative book about breast cancer. The author of this book has provided the following information about breast cancer, some of them yet unheard. We will learn the following: What is breast cancer? How does it develop? How does it metastasize? Each step of its development is shown by images. Patients for years have had mammography, MRI, and ultrasonography but have never had the opportunity to see the images of their breasts. Here they become familiar with their breast images. Clinical and radiological signs of breast cancer are reported for awareness of patients and general practitioners. How external blow or self-inflicted trauma (tight underwire brassiere) can promote breast cancer. Despite all controversies, screening mammography and physical examination still are gold standards for detection of breast cancer. Breast cancer is not overdiagnosed but surely it is overtreated. How to prevent or minimize local breast cancer recurrence by authors bracketing technique for the removal of the entire breast cancer at first surgical attempt. Side effects of the breast cancer treatment, surgery, radiation, chemotherapy, anti-hormone therapy are clearly exposed and how they can be prevented. New genetic discovery in breast cancer, which has revolutionized our knowledge of natural history of breast cancer, and its treatment are reported. Alternative treatment of breast cancer based on its genetics that carry better survival and is more economical for patients and for society is proposed.