Adolescent substance abuse is a growing concern in Hong Kong and there has been several peaks in adolescent substance abuse in the past two decades. In fact, these peaks mirrored the global trend of abusing non-opiate psychotropic substances and the growing belief among young people that psychotropic substance abuse is non-addictive and it is a trendy choice of life. Evidence-based practice is still very primitive in the fields of youth work and adolescent prevention in Hong Kong and there are many obstacles involved. This book examines how adolescent prevention and positive youth development programs can be developed in different Chinese contexts.