This sourcebook emphasizes information and experience by practitioners in the field of substance-abuse prevention and treatment, and addresses the issues from a sociological perspective, rather than focusing on a specific sub-group. Given the nature of concerns from interpersonal to organizational, a variety of methodologies is also useful in gaining better understanding. The book also includes material on substance abuse programmes in countries outside the US to broaden the cultural context. The text is intended for a wide audience whose research methodology, interests, and skills vary; therefore chapters are written to aid general readers as well as instructors. For the general reader, chapters are written with a minimum of research jargon and data using a modified case-study method which is highly readable. For researchers and advanced students who wish to pursue greater complexities, data tables and statistical information in more detail are given at the end of the chapter. Most chapters also provide references central to the topic in order to aid further reading.