This brochure summarizes key information for effective use of digital tools to interact with the population during public health emergencies for Latin America and the Caribbean. It answers 6 key questions: What are digital tools for population interaction?; Why are these tools important for the public health emergencies?; What are some examples?; What elements are needed to get started?; What considerations are important to contemplate when getting started?; and What should I monitor to see if the tool is effective in my context?