Professor Harald Kittler has a special clinical interest in dermatoscopy of pigmented skin lesions. His main research interest is digital dermatscopy, follow-up of pigmented skin lesions, and computer assisted digital dermatoscopy. He has been working for 20 years in the field of dermatoscopy and has published a number of scientific articles especially in the field of digital dermatoscopy and dermatoscopic follow-up of melanocytic nevi.