John Koo & Argentina Leon 
Mild to Moderate and Moderate to Severe Psoriasis (Set) [PDF ebook] 

Edited by an expert editorial team from leading dermatology centers, this set consists of two books: Mild to Moderate Psoriasis, Third Edition and Moderate to Severe Psoriasis, Fourth Edition. Using a practical and problem-focused approach, these updated texts equip dermatologists, family practitioners, and internists with a state-of-the-art guide to the clinical management of all forms of psoriasis. The set provides up-to-date treatment strategies for optimum patient management.