The A to Z of Descartes and Cartesian Philosophy includes many entries on Descartes’s writings, concepts, and findings. Since it is historical, there are other entries on those who supported him, those who criticized him, those who corrected him, and those who together formed one of the major movements in philosophy, Cartesianism. To better understand the period, the authors drew up a brief chronology, and to see how Descartes and Cartesianism fit into the general picture, they have written an introduction and a biography. Since everything cannot be summed up in one volume, a bibliography directs readers to numerous other sources on issues of particular interest.