It makes sense to have well-planned, research based approaches to adolescent health and education, which can be incorporated into the curriculum by teachers, within the normal context of the school. Daniel Shek and his collaborators make this point extremely well in this important new book on Positive Youth Development. In a detailed manner that is rare in the international literature, the studies described in this book examine the various factors that influence the quality of health promotion program implementation (5 "Ps": program, people, process, policy and place.