This application is for all those Dermatologists who want to combine knowledge with fun. It contains multiple choice questions from the entire field of Dermatology. Every question is a tip as well. Written by Dr Constantinos D. Verros (Dermatologist-Venereologist), the questionnaire will be updated on a regular basis. Have a small “textbook” in your iPhone and/or your iPad! Dermatology residents will find particularly useful this app, while dermatologists and other specialist doctors will have the opportunity to refresh and expand their knowledge in a pleasant way. Upon finishing the test, you can review the correct or wrong answers and have the % percentage of your success. Correct answers are highlighted with GREEN color and wrong with RED. In this way, you will have a full picture of the theory that supports every question. Emphasis is given in Clinical Dermatology and Laboratory exams.