Three types of skin cancer account for nearly 100% of all diagnosed cases. Each of these three cancers begins in a different type of cell within the skin, and each cancer is named for the type of cell in which it begins. Skin cancers are divided into one of two classes -- nonmelanoma skin cancers and melanoma. Melanoma is the deadliest form of skin cancer. The different types of skin cancer are: Basal cell carcinoma (BCC); Squamous cell carcinoma (SCC); Melanoma. All other skin cancers combined account for less than 1% of diagnosed cases. These are classified as nonmelanoma skin cancers and include Merkel cell carcinoma, dermatofibromasarcoma protuberans, Paget's disease and cutaneous T-cell lymphoma. This book examines the latest research in this field.