MODEL BOOKS
The most famous album of model drawings from the period is that of the architect and stonemason Villard de Honnecourt (ca. 1225-ca. 1250). The purpose of the album is the subject of controversy. Originally it was thought to have served as a training manual for architects, but scholars now think the models were mnemonic devices for architects to remember things they had learnt orally. Another type of model was portrait-like facial types, like the Bearded Prophet below, that could be incorporated within a variety of compositions.