The Rare Book & Manuscript Library is principal repository for special collections of Columbia University. Located in New York City on the university's Morningside Heights campus, its collections span more than 4,000 years, from early Mesopotamia to the present day, and span a variety of formats: cuneiform tablets, papyri, and ostraca, medieval and Renaissance manuscripts, early printed books, works of art, posters, photographs, realia (such as mathematical instruments and theater models), sound and moving image recordings, and born-digital archives. Areas of collecting emphasis include American history, Russian and East European émigré history and culture, Columbia University history, comics and cartoons, philanthropy and social reform, the history of mathematics, human rights advocacy, H