This issue of Dermatologic Clinics, Guest Edited by Dr. Murad Alam, is devoted to Practice Gaps in Dermatology. Articles in this issue include: Psoriasis and Papulosquamous Disorders; Blistering Diseases; Disorders of the Nails; Disorders of the Hair; Infections; Abnormal Pigmentation; Lupus, Scleroderma, Dermatomyositis; Genodermatoses; Pruritus; Drug Reactions; Dermatoses of Pregnancy; Contact Dermatitis; Acne and Rosacea; Radiation Therapy; Surgery for Skin Cancer; Cosmetic Dermatologic Surgery; Light, Laser and Energy Treatments; and Melanocytic Lesions and Melanoma.