Robert Pasnau traces the developments of metaphysical thinking through four rich but for the most part neglected centuries of philosophy, running from the thirteenth century through to the seventeenth. At no period in the history of philosophy, other than perhaps our own, have metaphysical problems received the sort of sustained attention they received during the later Middle Ages, and never has a whole philosophical tradition come crashing down as quickly andcompletely as did scholastic philosophy in the seventeenth century. The thirty chapters work through various fundamental metaphysical issues, sometimes focusing more on scholastic thought, sometimes on the seventeenth century. Pasnau begins with the first challenges to the classical scholasticism ofBonaventure and Thomas Aquinas, runs through prominent figures like John Duns Scotus and William Ockham, and ends in the seventeenth century, with the end of the first stage of developments in post-scholastic philosophy: on the continent, with Descartes and Gassendi, and in England, with Boyle and Locke.