This illustration, "The Evangelist Mark," is reproduced from a 13th-century miniature in a manuscript that is part of the Princeton University Library's Robert Garrett Collection.

Image: Courtesy of the Princeton University Library

This illustration shows St. Catherine's Monastery on a brown hillside representing Mount Sinai, where Moses is said to have received the Ten Commandments. At left, an elderly monk holds an open book, probably Scripture or a prayer book. Behind the monastery is the Burning Bush. The illustration is reproduced from an 11th-century miniature in a manuscript that is part of the Princeton University Library's Robert Garrett Collection.

Image: Courtesy of the Princeton University Library