Calvin Coolidge was the thirtieth president of the United States, serving in the White House from 1923 to 1929. He oversaw one of the greatest periods of prosperity in American history and reduced the federal budget even as the economy grew. Amity Shlaes (editor) is the author of the New York Times bestsellers Coolidge, The Forgotten Man, The Greedy Hand, and, most recently, Great Society. She chairs the board of the Calvin Coolidge Presidential Foundation. Matthew Denhart (editor) serves as president of the Calvin Coolidge Presidential Foundation.