The most complete English edition of Kant’s correspondence that has ever been compiled. The letters are concerned with philosophical and scientific topics but many also treat personal, historical and cultural matters. The letters chart Kant’s philosophical development as well as exposing quirks and foibles, and reveal a good deal about Kant’s friendships and philosophical battles with some of the prominent thinkers of the time: Herder, Hamann, Mendelssohn and Fichte. What emerges from these pages is a picture of the intellectual, religious and political currents of late eighteenth-century Prussia.