Geoffrey Perret is an English author who writes about American history. His work focuses primarily upon the political dynamics that influence strategic and tactical military decisions, as well as broader political themes. He has published over thirteen books dealing with a variety of topics such as the US Presidency, including several biographies of iconic Presidents such as John F. Kennedy and Ulysses S. Grant; leading American military commanders such as Douglas MacArthur; and pivotal American military engagements.