The American Academy of Dermatology (AAD) is a non-profit professional organization of dermatologists in the United States and Canada, based in Rosemont, Illinois, near Chicago. It was founded in 1938 and has more than 20,500 members. The Academy grants fellowships and associate memberships, as well as fellowships for nonresidents of the United States or Canada. Since 1979, the AAD also publishes a monthly medical journal, the Journal of the American Academy of Dermatology.