This book considers the key steps in the practical application of health promotion. It starts by showing how it is first necessary to determine the needs of a population and to review the scientific evidence to justify intervening. The wide range of approaches available are considered, including: motivational interviewing, theatre, mass media, social marketing, community development and public policy. Finally, it discusses how to plan health promotion programmes, how to evaluate them and how to expand their impact by scaling-up the activities to larger populations.