Part I: Background and General Aspects -- Non-Suicidal Self-Injury and Eating Disorders: Dimensions of Self-Harm -- Epidemiology and Sociocultural Aspects of Non -Suicidal Self-Injury and Eating Disorders -- Developmental Influences in NSSI and Eating Disorders -- Etiological Models -- Psychological Meanings and Functions -- The Patients' Perspective. Part II: Assessment & Treatment: Functional Assessment and Treatment Planning -- Cognitive Behavior Therapy -- Dialectical Behavior Therapy -- Family Therapy -- Mentalization Based Therapy -- Interpersonal Psychotherapy -- Pharmacotherapy -- Part III: Specific Topics: Co-Occurring Health/ Risk-taking Behaviors -- Experiences of the Body -- Peer influences -- Internet/Social Media influence -- Prevention & Postvention -- Primary Care & Inpatient -- Males - A unique approach.