Vision and Certitude is the joint winner of the John Nicholas Brown Prize for 1992 of the Medieval Academy of America.'...For decades, every medievalist has known that fourteenth century epistemology was ravaged by a terrible beast called Ockhamism. In a huge, dense and magisterial study Katherine Tachau drives a stake into the heart of that beast. It is a resilient creature and will probably rise again, but that will not be Tachau's fault.'David Burr, Church History, 1990.'...sorgfältige Analyse des vorhandenen Textmaterials...'Matthias Kaufmann, Philosophische Rundschau, 1991.'This is a very densely argued scholarly book, which contains a wealth of information about Schoolmen both well-known and virtually unknown.'History and Philosophy of Logic, 1991.'...richly documented and impressively traced history of theories of cognition from 1250 to 1345...an ambitious revision of well-known authors.'Archives Internationales d'Histoire des Sciences, 1990.'Im ganzen gesehen darf man die Studie von Tachau als recht nützlich bezeichnen.'Jakob Hans Josef Schneider, Archiv für Geschichte der Philosophie, 1994.