The book provides comprehensive coverage of canine cancer, with a focus on the most recent information regarding mammary cancer in dogs. Divided into 21 chapters, the book covers a wide range of topics, including an overview of canine cancer, its occurrence, etiology, classifications, polymorphism, radiological-immuno-hormonal-sex hormone profiles, enzymatic-genetic-tissue prognostic markers, and various modern diagnostic and therapeutic approaches. Additionally, the book includes extensive research findings on canine mammary cancer. It aims to provide the latest information to cater to the needs of both undergraduate and post-graduate students, as well as teachers and clinicians involved in canine practice. The book is supplemented with over 150 high-quality color photographs of canine cancer, cancer diagnosis, and cancer treatments. It is a valuable resource for those involved in the field of cancer research and treatment, including students, teachers, and practitioners.