This volume brings together for the first time all the available letters between her and her wide-ranging correspondents, who include George Washington, John Adams, Abigail Adams, Mercy Otis Warren, James Otis, Benjamin Rush, David Hume, James Boswell, Thomas Hollis, John Wilkes, Horace Walpole, Mary Wollstonecraft, Jacques-Pierre Brissot de Warville, and many other luminaries of the eighteenth-century enlightenment. It includes an extended introduction to her life and works and offers a unique insight into the thinking of her friends and correspondents during the period between 1760 and 1790, the crucible for the development of modern representative democracies. The Correspondence of Catharine Macaulay will appeal to scholars of philosophy, political thought, women's studies, and eighteenth-century history, as well as those interested in the development of democratic ideas.