Book excerpt: This new volume of the Biopsy Interpretation Series is a practical, superbly illustrated reference on the primary non-lymphoid neoplasms of the skin. The book offers guidelines on how and when to biopsy the skin and then discusses benign melanocytic proliferations, precursor lesions to melanoma, and melanomas. Also included are discussions of basal cell carcinoma, squamous cell carcinoma and its precursors, benign and malignant adnexal neoplasms, and soft tissue neoplasms of the skin and superficial subcutis. A major highlight of the book is the extensive discussion of differential diagnostic considerations and their separation from the main diagnostic entities under consideration. The book features nearly 300 full-color images. A companion Website will provide 400 additional figures, plus a test bank that is ideal for board exam preparation.