Robert Baran & Nilton Di Chiacchio 
Atlas of Nail Signs and Disorders with Clinical and Onychoscopic Correlation [PDF ebook] 

This atlas allows dermatologists and resident and qualified professionals in other disciplines to reach a quick diagnosis, with a wealth of clinical and dermatoscopic images for convenience.Key features: Provides a quick and straightforward guide to diagnosis for medical professionals. Allows residents and professionals in other disciplines easy access to the essential points. Presents the expertise of some of the most eminent international nail specialists.