This issue of Dermatologic Clinics, guest edited by Drs.Steven Feldman, Leah A. Cardwell, and Sarah L. Taylor is devoted to Rosacea. Articles in this issue include: Rosacea Pathogenesis; Genetic Predisposition to Rosacea; Epidemiology of Rosacea and Severity in the Population; Psychosocial Burden and Other Impacts of Rosacea of Patients' Quality of Life; Comorbidities of Rosacea; Rosacea Triggers, Alcohol and Smoking; Clinical Presentation/Classification of Rosacea and Variation in Different Fitzpatrick Skin Types; Rosacea Treatment Review; Medical Management of Facial Redness in Rosacea; Procedural Treatments for Rosacea; Ocular Rosacea; Rosacea Treatment Cost; and Coping with Rosacea.