Humphreys begins by illustrating the nature of self-help group organizations, highlighting their universal characteristics—the shared problems and change goals of participants, self-directed leadership, voluntary association, reliance on experiential knowledge, and norms of reciprocal helping. Beginning with Alcoholics Anonymous (AA), the most widely researched and understood of the self-help organizations, Humphreys describes 19 international groups in terms of their origins, philosophy and approach, and membership and attendance patterns. Humphreys nicely illuminates why traditional AA groups are not culturally appropriate or viable in all parts of the world and uses AA as the comparison group for the other organizations. The reader is certain to gain useful knowledge of differences in practices among groups' rules for anonymity, inclusion of family and significant others, and spirituality.