Browse through some of the self-help books at your local bookstore or online and select three or four of them (ideally, select books on a wide variety of issues). What scientific research does each...

Browse through some of the self-help books at your local bookstore or online and select three or four of them (ideally, select books on a wide variety of issues). What scientific research does each book use to support its claims? Do any of the books make extraordinary claims or rely on a “one size fits all” approach to psychological problems? What professional training or expertise, if any, do the authors have?