New or updated topics include: assessment; professional, legal, and ethical issues; brief therapy; computerized treatment programs; Internet testing; online therapy; treatment guidelines and manuals and the controversies associated with them; radical behavior therapies; cultural and gender issues; expanding roles for psychologists in neuropsychology and primary health care; managed care; and developments in psychotherapy research and psychotherapy integration. Careful cross-referencing and clear connections between topics permit chapters to be read in any order.