The BIAS team implemented 15 behavioral interventions, involving close to 100,000 clients. This compendium contains all the printed materials that were designed as part of those interventions. (Some interventions included nonprinted components, like robocalls and personal phone calls, which are not reflected in this document.) The interventions contribute to a body of knowledge about what works in human services settings. The BIAS team's objective in sharing these materials is to assist practitioners and program designers in developing future behavioral interventions and, more specifically, in crafting written materials that are informed by behavioral science. (author abstract)