The Communication Toolbox offers practical guidance for program managers who want to communicate more effectively with program participants and community members. The tools are designed for emergency programs and development programs. The toolbox focuses on communicating about programs as a way to improve accountability to those communities. This toolbox was inspired by programs in Haiti, where Catholic Relief Services observed that relatively simple, low-cost activities that promoted transparent communication substantially improved programs. Programs that did not emphasize the importance of sharing information with communities often faced challenges in implementation.