Cancer is a group of diseases in which abnormal cells divide and spread. There are many different kinds of cancer, and different forms of treatment. Cancer is very scary, and can be very difficult to handle physically, emotionally, and mentally. Learning about how cancer affects the body and how it can be treated can help readers who know someone with cancer, or who have cancer themselves. This book can help readers understand complex medical terms and processes through straightforward text. Full-color photographs and fact boxes highlight important information.