collector (he began by buying Art Deco postcards when he was six), but his particular focus, rather than on American artists, is on works by the Cubist masters Picasso, Braque, Gris, and Léger. He also collects Klimt. Much of his art comes from some of the world's most celebrated collections, including those of Gertrude Stein, the Swiss banker Raoul La Roche, and the British art historian Douglas Cooper. In autumn, 2012, the Museum of Fine Arts, Boston opened an exhibition of 700 of his postcards, a tiny part of the promised gift he has made to the museum of 120,000 postcards: The Postcard Age: Selections from the Leonard A. Lauder Collection. In an interview in The New Yorker, Lauder explained how postcards turned him into a collector, and how these "mini-masterpieces" remained his lifelong pursuit to the point where his late wife, Evelyn, called the collection his "mistress". He donated his collection of Oilette postcards, published by Raphael Tuck & Sons, to Chicago's Newberry Library, and funded their digitization; the Newberry launched the 26,000-item Tuck digital collection in 2019. Lauder's interest in postcards led him to be acquainted with one of the owners of the Gotham Book Mart, a Manhattan bookstore, and he sought to help the Gotham re-establish its presence in the city when the owner had sold its long-time building and needed a new space. Lauder bought a building at 16 East 46th Street along with a partner, letting the building's storefront space to the Gotham. Later, the Gotham fell behind on rents, eventually resulting in Lauder and his partner to file for eviction. In a much-publicized closure of the bookstore, the New York City Marshal later auctioned the store's inventory, which was bought in a lot by Lauder and his partner to some protest from many other independent book sellers and collectors who were present at the proceedings and hoping to purchase some of the bibliophilic treasures. Philanthropy Arts and culture Lauder has long been a major benefactor of the Whitney Museum of American Art. In 1971, he joined the museum's acquisitions board and in 1977, by then president of his family's business, he became a Whitney trustee. He became president in 1990 and has been chairman since 1994. He has donated both money and many works of art to the Whitney, and is the museum's most prolific fundraiser. His 2008 donation to it of $131 million