Introduction

The aim of this handbook is to provide the reader with an overview of key topics on psoriasis and psoriatic arthritis (PsA), ranging from the etiology, immunopathogenesis, and clinical presentation to quality of life measures, diagnosis, and treatment options. The book is targeted at those who have an interest in skin disease and joint disease such as dermatologists, rheumatologists, primary care physicians, and other healthcare providers who may encounter these conditions. The format is one of a concise, accessible, and evidence-based text, which has an emphasis on clinically relevant practice points.