The WHO website has an introductory description for the Guidance. It states that the WHO Guidance on Research Methods for Health Emergency and Disaster Risk Management (Health EDRM) was developed to address the need to promote high quality research methods to those who commission and conduct research on Health EDRM. The intended audience includes decision makers, practitioners, and community actors who need for evidence-based policy and practice to implement the Health EDRM Framework, Sendai Framework on Disaster Risk Reduction 2015-2030, the International Health Regulations (2005), the United Nations Sustainable Development Goals (SDGs) and other relevant global, regional and national frameworks. Chapters have been written by more than 100 international authors with practical experience and expertise in a wide range of areas including research, practice and policy making. The unique collection of chapters provides straightforward and practical guidance on how to plan, conduct and report a wide variety of studies that can answer quantitative and qualitative questions in different emergency settings. Case studies of direct relevance to Health EDRM provide real-life examples of research to illustrate the methods and their impact. The book was revised in 2022 with an additional chapter on how to use this book in the context of COVID-19 pandemic.