A skin neoplasm is an unusual growth of tissue on the skin. It can be cancerous, noncancerous or precancerous. A benign neoplasm does not spread to nearby tissues or other parts of the body and stays localized. However, it can still cause damage to organs and tissues around it. Some of the common forms of benign skin neoplasms are lipoma, cherry angioma, epidermoid cyst, etc. A malignant neoplasm is cancerous and grows uncontrollably and invades other organs. It travels through the body producing new tumors. Some of its types are squamous cell carcinoma, melanoma, basal cell carcinoma, lymphoma of the skin, etc. Some neoplasms are termed as precancerous because they can potentially turn into a cancer if untreated. Some types are actinic keratosis and Bowen's disease. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the diagnosis and treatment of skin neoplasms. The various advancements in this domain are glanced at and their implications as well as ramifications are looked at in detail. For someone with an interest and eye for detail, this book covers the most significant topics in dermatology and oncology.