The Tibetan Book of Proportions

An eighteenth-century pattern book consisting of 36 ink drawings showing precise iconometric guidelines for depicting the Buddha and Bodhisattva figures. Written in…more

Hirschvogel’s Geometria (1543)

Selected pages from Geometria by Augustin Hirschvogel (1503–1553), a German artist, mathematician, and cartographer known primarily for his etchings. In this vers…more

Novum Instrumentum Geometricum (1607)

Illustrations from Leonhard Zubler’s Novum Instrumentum Geometricum (1607). Zubler was a Swiss goldsmith and instrument maker who is credited with introducing the…more

Fortification Theory (1600)

Images from Jean Errard’s Fortification Réduicte Art and Démonstrée (Paris, 1600), a seminal work in fortification theory. Errard (1554-1610) was a mathematici…more