This book presents a detailed exploration of the genetic, molecular, and environmental variables in the progression of solar radiation induced skin cancer, or photocarcinoma. The pathogenesis of various types of photocarcinoma, such as melanoma, basal cell carcinoma, actinic keratosis, squamous cell carcinoma, etc. have been addressed. The book begins with a discussion on the biological mechanisms of UV-induced DNA damage and disruption of DNA repair for comprehensive understanding of the recurrence of photocarcinoma. Numerous biomarkers have been discussed to ascertain how they contribute to the development of photocarcinoma. Following this, the latest advances in the treatment and diagnosis of photocarcinoma have been discussed in detail. The book also explores pharmaceutical development, ethical considerations, surgical and non-surgical approaches, and the role of immunotherapy and targeted therapies in advanced cases. In addition to the clinical and therapeutic perspectives, the book emphasizes patient education, aiming to bridge the gap between clinical practice and public awareness. Thus this book addresses interdisciplinary subjects within dermatology, photobiology, oncology, pharmaceutical sciences, and life sciences. This book serves as a comprehensive resource on the molecular biology, diagnosis and management of photocarcinoma and is primarily targeted at healthcare professionals, researchers, and pharmaceutical scientists.