Four Books on Human Proportion

A large, central monogram in black ink, featuring a tall capital letter "A" with a smaller capital "D" nested within its lower crossbar—the distinctive artist's signature of Albrecht Dürer.

A D
This is the iconic monogram of Albrecht Dürer (1471–1528). By placing the 'D' inside the 'A', Dürer created a recognizable brand for his workshop. This monogram acted as a mark of quality and a deterrent against the many contemporary artists who attempted to forge his popular woodcuts and engravings.

Albrecht DürerThe premier artist of the Northern Renaissance, known for his revolutionary printmaking and painting.
Vellum bindingA durable binding made from calfskin, lambskin, or goatskin, typical for valuable 16th and 17th-century books.