This two-day workshop provides a comprehensive introduction to community-based social marketing and how it is being applied throughout the world to foster sustainable and healthy behaviours. Those who attend the workshop will learn the five steps of community-based social marketing (selecting behaviours, identifying barriers, developing strategies, conducting pilots, and broad scale implementation) and be exposed to numerous case studies illustrating its use. As such, this workshop provides an in-depth exposure to community-based social marketing and provides participants with the knowledge they need to design and evaluate their own community-based social marketing programs. Further, attendees will have extensive opportunities to discuss the application of community-based social marketing to the design of actual programs. At the end of the two days participants will have acquired sufficient knowledge to use community-based social marketing to develop successful programs to foster behavioural changes that support sustainability and public health. This workshop, or another introductory workshop delivered by Dr. McKenzie-Mohr, is a mandatory prerequisite for attending the advanced community-based social marketing workshop that directly follows this workshop.