Both through his own work and that of his students, Franz Clemens Brentano (1838-1917) had an often underappreciated influence on the course of 20th- and 21st-century philosophy. This Handbook offers full coverage of Brentano's philosophy and his influence. It contains 38 brand-new essays from an international team of experts that offer a comprehensive view of Brentano's central research areas-philosophy of mind, metaphysics, and value theory-as well as of the principal figures shaped by Brentano's school of thought. A General Introduction serves as an overview of Brentano and the contents of the volume and three separate bibliographies point students and researchers on to further avenues of inquiry. Systematic and detailed, the Handbook provides readers with a valuable reference to Brentano's work, and to his lasting importance in the history of philosophy and in contemporary debates.