Book excerpt: The comprehensive coverage in this hugely important and timely handbook makes it invaluable to clinical child, school, and counseling psychologists; clinical social workers; and child psychiatrists. As a textbook for advanced clinical and counseling psychology programs, and a solid reference for the researcher in child/adolescent mental health, its emphasis on flexibility and attention to emerging issues will help readers meet ongoing challenges, as well as advance the field. Its relevance cannot be overstated, as growing numbers of young people have mental health problems requiring intervention, and current policy initiatives identify evidence-based therapies as the most effective and relevant forms of treatment.