As John Copeland states in his chapter, "This is a book on epidemiology." It is written by epidemiologists, and it understandably poses more questions than answers. It skillfully argues for getting more reliable and immaculate data to convince society to increase funding for mental disease intervention. However, the book does not appropriately deal with some important issues, such as the difference between the definition of mental illness according to epidemiological surveys or criteria versus the clinician’s criteria. It focuses mostly on the unmet need of those whose care is paid for by the society and does not discuss (again, probably understandably) the unmet need of the very small minority able and willing to pay for services. It does not guide the reader on how to convince the suffering person that his or her unmet needs are superseded by the needs of the society and whether it is the physician’s role to convince the patient about this. The book is also poorly conceptualized by the editors (the mentioned "data" chapters versus "review" and "essay" chapters) and unevenly written. Finally, it is not cheap. Nevertheless, it is a useful, thoughtful, provocative book, which should be read by the leaders in the field of mental health, as well as by academicians, health planners, administrators, and policy makers.