Though it's the first thing we see when we look at each other, the skin may be occasionally forgotten as a site of clinically important disease. The reviews in this series highlight our current understanding of several common dermatological conditions, and describe how research in the field has played a major role in expanding our understanding of the basic biology of stem cells and cancer. Correspondingly, basic research findings have led to new insights into dermatological disease, often with impact on therapeutic strategies. Cover image credit: John Seykora