This book provides adolescents with strategies for building developmental assets that have been identified as crucial to success. The assets were identified using data from a survey of more than 250,000 students in grades 6-12. The 40 highlighted assets, grouped into two main types, are designated as either external or internal. The external assets are good things needed in life, while the internal assets are good things needed in oneself. The two main types of assets are divided into eight smaller categories: support, empowerment, boundaries, constructive use of time, commitment to learning, positive values, social competencies, and positive identity. Each category has its own title page that explains what those assets are about. Each asset has its own chapter, divided into sections that provide ideas for building assets at home, at school, in the community, in congregations, and with friends. Facts related to the assets are provided, along with true stories about real people who are building the assets and resources. In a "Tools and Resources" section at the end of the book, pages are provided for photocopying a list of all 40 assets and asset-building ideas for adults, families, schools and youth organizations, congregations and neighborhoods, and businesses and government. (Contains 123 references.) (CR)