To ensure continued scientific progress and also that the benefits of discovery accrue to the citizens who support it, researchers must serve as diplomats, cultural translators, and coalition builders. In this how to book, Professor Olds describes the hows and whys of scientific diplomacy, drawing on insights and experiences from his own career. -- Daniel Reed, University of Utah, USA How to be an Ambassador for Science will be a highly valued resource for all aspiring scientists who want to be part of the advocacy movement and what better time than now! Actionable suggestions and skill development, coupled with enjoyable storytelling, make this both an informative and practical guide. -- Linda Hyman, Marine Biological Laboratory, USA How to be an Ambassador for Science is a competent and timely contribution to society. Author James Olds engagingly discusses how to operate in the Washington, DC policy ecosystem, crafting convincing messages to trusted and new collaborators, and successfully brokering national and international deals. This guide should be on everybodys desk. -- Katrin B. Anacker, George Mason University, USA