Paul Gerson Unna, one of the leading dermatologists of Central Europe, was way ahead of his time. The originality of this meticulous researcher always reflected in his works on anatomy and histology of the skin. Field of dermatology was made very attractive and appealing to many at that time by his first book on histopathology. His revolutionary Unna boot was only a minor invention when compared to his extensive contribution to the educational research and therapeutic dermatology.