Klonsky (psychology, U. of British Columbia, Canada) et al. help therapists and students understand diagnosis and treatment issues related to nonsuicidal self-injury. They discuss its definition, epidemiology, course and prognosis, differential diagnosis, comorbidities, assessment techniques, theories and models, and research-informed treatment approaches, with an emphasis on emotion regulation, functional assessment, and problem solving. Coverage includes motivational interviewing, cognitive behavior therapy, dialectical behavior therapy, behavioral management strategies, delay behaviors/means restriction, exercise, interpersonal skills, family therapy, risk management, and medication, and how to combine methods, as well as multicultural issues and problems in carrying out treatment. No index is provided. Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)