This toolkit builds on previous UNICEF (2006) work undertaken on emergencies, notably its publication Behaviour Change Communication in Emergencies: A Toolkit. It also draws on a wide range of methods and practices associated with Communication for Development C4D that cut across a range of programme delivery areas including health, nutrition, water, sanitation and hygiene (WASH), and child protection. The CHAT Toolkit is practice fo-cused and designed to help users to quickly develop a comunication for humanitarian action strategy using a range of step-by-step templates and short workshop facilitation guides. All references cited in this toolkit can be located in the ‘Resource Bank’ sections that accompany the various sections.