The Dermatopathology Books Before Unna.

Unna's book on dermatopathology was the one that achieved the greatest recognition in medicine and influenced the largest number of dermatopathologists in Europe at that time. However, several previous texts also gathered the requirements to be considered dermatopathological books. In this manuscript, we briefly examine some of the most relevant features of the dermatopathology books written by Simon, Leloir and Vidal, Auspitz, Bärensprung, and Jackson.