Shows cross sections of the skin, nail and hair anatomy. Describes the role of the epidermis, dermis and subcutaneous layer. Illustrates and describes types of skin lesions: fissure, ulcer, cyst, macule, papule, wheal, vesicle, pustule, bulla and nodule. Also shows and describes acne (closed & open comedo), actinic keratosis (solar keratosis), junctional nevus (mole), basla cell carcinoma, squamous cell carcinoma, verruca vulgaris (wart), seborrheic keratosis, dermatofibroma, and urticaria (hives).