Richard Elliott Neustadt was an American political scientist specializing in the United States presidency. He served as adviser to several presidents. His book Presidential Power has been described as "one of the most influential books ever written about political leadership." Thinking In Time: The Uses Of History For Decision Makers won the Grawemeyer Award. His other books include Alliance Politics, Preparing to be President, and, with Harvey V. Fineberg, The Swine Flu Affair: Decision-Making on a Slippery Disease.