In my last column, I wrote about the 14-century Italian painter Giotto and the challenges he faced in depicting objects as viewers see them, rather than as they really are. In the late medieval period ...

(Installation view of works by Brigitte Mahlknecht (left), Judith Saupper (center), William Cordova (right). (Courtesy ACFNY/Luca Mercedes) The Projective Drawing at the Austrian Cultural Forum New ...

PROF. CRUMRINE PATTERSON declares that his motive in writing this text-book of projective geometry was "the feeling that a more complete discussion than is usual in elementary textbooks is desirable".