Book excerpt: Essentials of Abnormal Psychology uses an integrative approach to emphasize the interplay of psychological, socio-cultural, and biological factors in the development of psychological disorders. Its brief, streamlined format introduces students to the basic concepts of the field while being inclusive of Canadian cultural diversity, gender, and lifestyle. The text's engaging writing style, research-based coverage, superior pedagogy, and student-oriented applications are designed to arouse student interest and encourage critical thinking. KEY TOPICS: What Is Abnormal Psychology?;Assessment, Classification, and Treatment of Abnormal Behaviour;Anxiety, Obsessive-Compulsive, and Trauma- and Stressor-Related Disorders;Depressive, Bipolar and Related Disorders and Suicide;Dissociative and Somatic Symptom and Related Disorders;Personality Disorders;Substance-Related and Addictive Disorders;Feeding and Eating Disorders and Sleep--Wake Disorders;Gender Dysphoria, Paraphilic Disorders, and Sexual Dysfunctions;Schizophrenia Spectrum and Other Psychotic Disorders;Abnormal BehaviourAcross the Lifespan MARKET: Appropriate for Abnormal Psychology Courses.