Princeton University Library's Special Collections span five millennia and five continents, and include around 300,000 rare books; 30,000 linear feet of manuscript materials, ranging from cuneiform tablets to contemporary texts; a wealth of prints, drawings, photographs, maps, coins, and other visual materials. The vast majority of these items had histories, sometimes long ones, before they entered PUL, and had many owners. These previous owners, who frequently gifted their extraordinary collections to PUL, are celebrated here.