The New York Public Library's online collection of prints and photographs from the Berg Collection of English and American Literature is comprised of portraits of 120 authors from the 1860s to the 1920s. The Bergs originally obtained the photos when acquiring books and manuscripts, but eventually bought or otherwise acquired other author portraits. Visitors can put a face to a name of those authors whose countenances are less familiar than their works, such as Louisa May Alcott, Charles Dickens, Robert Louis Stevenson, and Walt Whitman. Several search options exist to view the collection. "See all images," near the top of the homepage, has thumbnails but isn't arranged alphabetically. "Collection contents" gives the list of authors in alphabetical order. Visitors can search the collection by keyword, and can also click on "Related Subjects" to get more information on author portraits from the New York Public Library collections. Also, Walt Whitman fans can view a portion of Berg's large donation to the New York Public Library of Walt Whitman items, including books, pamphlets, periodicals, and portraits.