This book highlights the molecular and cellular mechanisms involved in the initiation and progression of skin cancer.  It also explains the role of the environment in skin cancer development and explores the potential of microbiome in the diagnosis, prevention and treatment of skin cancer. The book also presents potential biomarkers for early detection of skin cancer and discusses recent advances in skin cancer prevention and treatment using photodynamic therapy. Lastly, it summarizes the applications of biomedical engineering, non-coding and nanotechnology in the diagnosis and therapeutics in skin cancer. It is a valuable resource for investigators in the field of skin cancer, including pathologists, medical and surgical oncologists, and dermatologists.