Information is critical at all levels when working in an emergency. WHO headquarters and country and regional offices, collaborating centres and partners need information to provide appropriate support during crises. As information gathering is especially difficult during emergencies, it is important that staff in the field have comprehensive, easy-to-use and standardized tools. Several tools support emergency health management, and are primarily aimed at WHO staff and operational partners. Below are links to references which include introductory materials, instructions, support materials and standardized templates.