This issue of Hematology/Oncology Clinics, guest edited by Dr. F. Stephen Hodi, is devoted to Melanoma. Articles in this issue include: The current state of Melanoma; Understanding the Biology of Melanoma Development and Therapeutic Implications; Surgical Management of Melanoma; Targeted Therapies for Cutaneous Melanoma; Treatments for Non-cutaneous Melanoma; Resistant Mechanisms and Therapeutic Implications; The Role of the Immune System in Melanoma Development and Treatment; Vaccines and Melanoma; IL-2, Interferon, and Cytokines; Immune Checkpoint Blockade; Adjuvant Treatments, Chance for Cure in Melanoma; and Combinatorial Approach to Treatment of Melanoma.