This new edition keeps an acclaimed text at the forefront of the market. Diagnosing and treating hair disorders is still a subject that is rarely or only superficially covered in residency training, so dermatopathologists and clinical dermatologists often find a gap in their knowledge; this new edition bridges that gap by serving as a primer, an atlas, and a reference. As a primer it supplies the basic information on anatomy and details the practical processes of evaluating specimens. As an atlas it is rich in new photographs demonstrating basic and advanced histologic features of hair disease, with several new diagnoses included. As a reference it includes the latest information and an augmented guide to the basic clinical features that provide a clinical / pathological correlation.