Consists of selected material by and about the Irish poet and dramatist William Butler Yeats, including correspondence, a poetry manuscript, photographs, family items, and Cuala Press ephemera.

Consists of the publishing and administrative records of Weidenfeld & Nicolson, a British publishing company founded by George Weidenfeld (1919-2016) and Nigel Nicolson (1917-2004), which specialized in literary fiction and nonfiction, with an emphasis on history, biographies and memoirs, books by world leaders and political figures, glossy illustrated books, travel guides, and reference books. The collection documents the operations of the firm from its establishment in 1948 through its sale in 1991, and also includes some later records from as recent as 2012 related to its continued operation as an imprint of the Orion Publishing Group.