Personality disorders are so widely misunderstood that most people who live with them never receive help. This book explores the age-old question of "What is 'normal'?" to help young adults understand where the line is drawn between healthy and disordered personalities. Mental health experts' current understanding of personality disorders, including causes and treatments, is explained in this engaging text, supplemented with informative sidebars and full-color photographs. Readers will develop an understanding of what it is like to live with a personality disorder or be close to someone who does, gaining a sense of hope as they read.