John Paul Cooper is a hitherto neglected, but important, figure of the Arts and Crafts Movement. Influenced by William Morris and somewhat overshadowed by him, today Cooper's work can be seen in major collections throughout the world and his pieces fetch increasingly high prices among the cognoscenti. This study, the result of research using archival material, reassesses Cooper's place within the Arts and Crafts Movement, and provides a full account of his life and work.