Offers a balanced presentation of the clinical description of psychological disorders, theories of causation and treatments. The book discusses diverse perspectives without bias, showing the stengths and weaknesses of each and highlighting the questions that remain unanswered. The book also provides clear descriptions of all the latest research findings, including research into the possible biological underpinnings of abnormal psychology. Ancillary texts include an instructors manual, testbanks available in print or computerized (for IBM or MAC) and a study guide.