The Sackler Colloquium The Science of Science Communication surveyed the state of the art of empirical social science research in science communication and focused on research in psychology, decision science, mass communication, risk communication, health communication, political science, sociology, and related fields on the communication dynamics surrounding issues in science, engineering, technology, and medicine. This interdisciplinary scientific meeting was held at the National Academy of Sciences in Washington, D.C. May 21-22, 2012. Detlof von Winterfeldt (University of Southern California)