The Allan Kaprow Papers offer comprehensive documentation of an artistic career, including the complete extant documentation of Kaprow's Environments, Happenings, and Activities. Hundreds of reproductions from the Kaprow archive were published in Allan Kaprow—Art as Life (2008).

Almost 200 catalogs published prior to 1909, with annotations on items for sale, successful bidders, and prices realized.

Selections from the David Tudor Papers document the composer and pianist's participation in post–World War II experimental and avant-garde music. Collaborators include John Cage, Earle Brown, Morton Feldman, Christian Wolff, Sylvano Bussotti, and Karlheinz Stockhausen.

Fifteen letters, addressed to Paul Berard, Julie Manet, and Gustave Geffroy, among others. Largely personal in nature, the letters contain some discussions of works-in-progress, dealers, and travel, including Renoir's trip to Argenteuil with Gustave Caillebotte.

Photographs depict objects from industrialist and poet Auguste Génin's collection of archaeological, cultural, and natural objects found in Mexico, including pre-Columbian archaeological items from the Huichol, Tarahumara, and Zapotec civilizations.

Exploring Lissitzky's career as a typographer, book designer, and architect, this website takes its inspiration from and shows materials featured in the Getty Research Institute exhibition Monuments of the Future: Designs by El Lissitzky (November 21, 1998–February 21, 1999).

The complete set of six volumes of this Mexican modernist journal, published and edited by Wolfgang Paalen.

A 32-page sketchbook consists of preparatory drawings of women, groups, silhouettes, and nudes; two letters; and a draft essay discusses Cubism, artistic talent and instruction, and l'art décoratif.

One hundred letters, most from Henri Edmond Cross to Maximilien Luce or the Cousturiers, as well as postcards, manuscripts, and two sketchbooks by Cross. Letters by artists such as Lucien Pissarro, Paul and Berthe Signac, and Edgar Degas discuss the theory and practice of Neo-Impressionism.

Two sketchbooks: the first, dated 1917, contains 12 preliminary drawings in pencil, ink, and watercolor for Apokalypse; the second, ca. 1924–32, contains 81 sketches in ink, pencil, charcoal, chalk, and watercolor of landscapes, portraits, and studies of athletes.

A neo-Futurist book made from 15 rolled-edge sheets of tin. Texts include a preface by Filippo Marinetti originally published in Farfa's 1933 work; illustrations are by Bruno Munari. (Access is available only to on-site readers and to Getty staff.)

Taken by the Munich-born photographer Johannes Felbermeyer, more than 1100 prints and negatives record the repatriation of art after World War II, depicting those involved in the process and approximately 500 European paintings and sculptures.

Fifteen stock books from the influential Parisian dealers contain the dates of acquisition, dealer's costs, names of purchasers, dates of sales, and selling prices for about 43,700 works of art bought and sold by the gallery.

These 29 handwritten notebooks (1938–46 and 1948–76) contain daily accounts of J. Paul Getty's travels, business dealings, and art acquisitions, and provide insights into his personality, politics, relationships, tastes, and values. The diaries illustrate Getty's relations with people in the art world and illuminate how he developed the collections of decorative arts, antiquities, paintings, and sculpture that evolved into the J. Paul Getty Museum.

A complete collection of press releases issued by the J. Paul Getty Trust and its various programs from the founding of the J. Paul Getty Museum in 1953 until 2000.

Seventy letters written by Raoul Dufy and Othon Friesz to Fleuret contain details of the modernist cultural milieu in Paris. (Access is available only to on-site readers and to Getty staff.)

Over 600 images record examples of the modern movement in architecture in Southern California, including the Case Study houses.

More than 4,500 images including stereo views, photograph albums, illustrated books, and printed ephemera of the Middle East and North Africa taken by 164 photographers and photographic studios.

Over 200 lantern slides taken by the Franciscan missionary Maynard in China document Chinese culture and missionary activity during the final days of the Qing dynasty, the Revolution of 1911, and the birth of the Chinese republic, notably in Shaanxi province.

Over 600 images by Mexican, European, American, and unknown photographers, spanning from the beginning of the French intervention to the Mexican Revolution and including albumen, collodion, and gelatin silver prints, cartes-de-visite, cabinet cards, photo albums, and postcards.

Taken by an unknown photographer, the 102 images in this album include views of well-known sites in Beijing, including the Forbidden City, Hataman Gate, the Winter Palace, the Temple of Heaven, the Summer Palace, the Confucius Temple, a lama temple or lamasery, views of the city from the pavilions on Coal Hill (Jingshan), and from the Great Wall.

Panel discussions, interviews, letters to curators, and other informal writings (including drafts and corrections), as well as audio recordings and transcripts of a 1969 interview with Arthur Cohen.

Thirty-five books produced by poets including Velimir Khlebnikhov, Alexei Kruchenykh, Vasily Kamensky, and Vladimir Mayakovsky in collaboration with such artists as David Burliuk, Natalia Goncharova, Mikhail Larionov, Kazimir Malevich, and Olga Rozanova.

An album of 154 photographs collected by a sailor during his tour of duty aboard the famous German gunboat Iltis with views of port cities and other naval vessels.

One hundred photographs of Algeria, publications, and albums, including C. Portier, Algérie Pittoresque (1870), A. Le Roux ,Views of Algeria (1880), Jean Geiser, Souvenir d'Algérie (1880), and Neurdein Frères, Vues d'Oran.

All four issues of this illustrated American surrealist journal.