This book reviews the theories regarding commonly occurring developmental issues among Chinese adolescents in Hong Kong, the application of Positive Youth Development (PYD) to a large-scale primary prevention program and the impact of PYD on student well-being, indexed according to adolescent developmental issue. Using multiple strategies, it presents the overall constructs and frameworks supporting P.A.T.H.S. in response to the various psychosocial needs of Hong Kong¿s youth. Some of the issues covered include substance abuse, sexual behavior, internet addiction, bullying and cyber- bullying. The book argues for the effectiveness of the school-based program in promoting student well-being in modern Hong Kong society and will be of interest