A component of MKSAP 15, the section on dermatology of this title includes a comprehensive textbook section as well as multiple choice questions to test your knowledge. The questions are based on realistic scenarios that physicians are likely to encounter in caring for patients. "Dermatology", the latest addition to the MKSAP 15 library covers the role of biologics in treating psoriasis, the latest approach to pruritis, the recognition and treatment of cutaneous MRSA, and many other issues.