Using the experience from the United States on positive youth development, researchers in Hong Kong developed the Project P.A.T.H.S., trained the potential program implementers and evaluated the developed programs. Because of the overwhelming success of the project in Hong Kong, the project was piloted in mainland China for several years. This project (supported by the Tin Ka Ping Foundation) was piloted in four cities in East China (Shanghai, Suzhou, Changzhou and Yangzhou) from 2011 to 2014. In this book, we present the training program in mainland China and also a leadership project for university students at The Hong Kong Polytechnic University. The chapters underscore the importance of evaluation, and we hope that the findings will motivate university teachers and others to utilise positive youth development principles within and outside of Hong Kong.

Adolescent risk behavior is a growing problem in the global context. In many places, efforts are carried out to prevent the occurrence of adolescent risk behavior and to identify the best intervention options. In view of the growing magnitude of adolescent risk behavior, one question is how we can "explain" such behavior. Traditionally, people tend to find answers "within" adolescents. Explanations such as "weak mindedness", "lack of determination" and "laziness" have been shared in people in different cultures. While these beliefs are widely held, there is no scientific support for such explanations. Fundamentally, promotion of psychosocial competencies is at the heart of positive youth development and psychosocial competence is closely related to leadership skills in adolescents. In view of the developmental issues faced by Chinese university students and taking advantage of higher education reform in Hong Kong, a subject entitled "Tomorrow's Leaders" is offered to around 2,000 students every year. Based on our evaluation of this project, we strongly encourage colleagues to make similar initiatives elsewhere to create leadership for the future.