Many 20th-century artists have experimented with the book form, which allows them to express their interest in multiples and reach a wider audience. In conjunction with Bookworks: 1982, the international conference of artists, writers, and publishers being held in Philadelphia in October, the Museum has selected nine artists' books which reveal a range of approaches to the artistic medium.

John Cage: A Portrait Series by Robert Mahon is an exhibition of 216 photographs by Robert Mahon installed in the Director's Corridor by the artist.

This exhibition presents the first comprehensive review of John Cage's scores, print editions, and books, which have added a visual dimension to his international reputation as a composer. Cage's link with the art and thought of Marcel Duchamp makes the Philadelphia Museum of Art, with its great holdings of Duchamp's work, a particularly apt site for this exhibition.

Thomas Eakins: Artist of Philadelphia was organized by Darrel Sewell, Curator of American Art. It was supported by grants from the IBM Corporation and The Pew Memorial Trust.

Frederick H. Evans, friend of George Bernard Shaw and Aubrey Beardsley, retired from his successful business as a London bookseller in 1898 to devote himself entirely to photography. His exquisite platinum prints of English and French cathedrals, parish churches, chateaux, woodlands, and landscapes established his lasting reputation as a pure photographer at a time when the manipulated gum print was the accepted medium of the London photographic salons and clubs.

In 1962 Danny Lyon, armed with a camera, set off like thousands of his contemporaries on a voyage of discovery across America. He was a born wanderer and fearless observer who developed into an extraordinary recorder of the tumultuous events of the 1960s and '70s. This display of some 130 works forms an unusual autobiography of an artist who shows an intense and profound identification with his subjects.

The University Museum, University of Pennsylvania, began acquiring African art in the last decade of the 19th century and by now has one of the largest collections in the United States. The twenty-seven sculptures that appear in this exhibition of Nigerian Art from the University Museum constitute some of the finest objects in the collection.

Treasures of Ancient Nigeria, a loan exhibition from the Nigerian National Museum, was organized by the Detroit Institute of Arts and made possible by grants from the Mobil Companies Nigeria, the National Foundation on the Arts and Humanities, and the National Endowment for the Arts.

American Presidential China is a collection of official and personal tableware used by presidents from George Washington to Ronald Reagan. The exhibit consists of one hundred objects from a private Philadelphia collection supplemented by pieces lent by Set Charles Momjian.

The Philadelphia Museum of Art is working in cooperation with Mr. Joel Snyder of the University of Chicago to present the exhibition and publication American Frontiers: The Photographs of Timothy O'Sullivan. The exhibition will include over 200 photographs from the work accomplished during the Civil War, the King and Wheeler expeditions to the American West, and the Selfridge expedition to Panama.