(now Culture, Heritage and the Gaeltacht) and on 3 May 2005 became an autonomous cultural institution under the National Cultural Institutions Act 1997. The library has had a series of notable directors, such as Thomas William Lyster (1895-1920), Robert Lloyd Praeger (1920-24), Richard Irvine Best (1924-40), Richard J. Hayes (1940-67) and Sandra Collins (2015-21). The post is currently vacant, with Katherine McSharry taking the position of Acting Director. Collections The main collection of the library is a combination of stock transferred from the Royal Dublin Society, later acquisitions, and copyright deposits of all work published in Ireland. The National Cultural Institutions Act 1997 mandated that the National Library of Ireland collect all materials relating to Ireland to provide an accurate record of Irish output. The NLI holds over 2785 subject items related to 20th Century Irish Poetry Irish Authors. The National Library of Ireland is main source for the collection of poetry by Irish writers. The National Library of Ireland houses collections of archival papers, including personal notes and work books, of the following eminent writers: Roddy Doyle Seamus Heaney Michael D. Higgins James Joyce Edna O'Brien Colm Tóibín Una Troy Sheila Wingfield W. B. Yeats The National Library of Ireland houses the Sheehy Skeffington Papers, a collection of articles, books, poems, and other materials of Irish writers and activists, Francis Sheehy Skeffington, and Hanna Sheehy Skeffington. These writings offer an understanding into the influence of the Francis and Hanna Skeffington in early 20th Century Irish culture and thought as well as insight into their family life. The Library also holds the Cooper Collection. Austin Cooper (1759–1831) was a County Tipperary clerk who produce numerous sketches of Irish antiquities which were preserved by his great grandson. The Cooper Collection also contains drawings by other artists including Francis Wheatley. In 2010, the National Library of Ireland began a collaborative effort in a new website, The National Archive of Irish Composers, which was designed to develop a free online comprehensive collection of the sheet music of 18th and 19th century Irish Composers. As of 2021, the website of The National Archive of Irish Composers describes the project as a collaborative venture between the National Library of Ireland, TU Dublin Conservatory of Music and Drama, Heritage Music Productions, and directed by Dr Una Hunt. In 2019, the Library accessioned its first "born digital" collection as a pilot scheme, receiving the digital collection of