Essentials of Abnormal Psychology in a Changing World, Fourth Canadian Edition, uses case examples and self-scoring questionnaires; a clear and engaging writing style that is accessible but does not compromise rigour; research-based and comprehensive coverage; superior pedagogy; and integration of sociocultural material throughout, including coverage of issues relating to Canadian cultural diversity, gender, and lifestyle.

Essentials of Abnormal Psychology provides students with the basic concepts in the field in a convenient 11-chapter format. These chapters cover historical and theoretical perspectives, approaches to psychological assessment and treatment, and the major types of psychological disorders―including eating disorders, anxiety disorders, depressive and bipolar disorders, substance-related disorders, personality disorders, gender dysphoria and sexual dysfunctions, schizophrenia, and disorders of childhood, adolescence, and aging. Throughout the text, we highlight important Canadian research, case examples, and societal and legal perspectives on abnormal psychology. We also present the best international research from a Canadian perspective.