On March 4, 2026, the Georgia O'Keeffe Museum in Santa Fe launched a website called Access O'Keeffe. It was the culmination of a decade of work. The site contains records of more than 2,200 works by O'Keeffe, searchable by color, shape, or medium, with high-resolution images, exhibition histories, archival materials, and research data. It is built on a linked data platform using the open Linked Art data standard. More than 130 organizations contributed updated images and information, including the National Gallery of Art, the Art Institute of Chicago, the Metropolitan Museum of Art, and the National Museum of Modern Art Tokyo. The museum's director, Cody Hartley, said: "Access O'Keeffe transforms more than the way we interact with O'Keeffe's art and legacy. It revolutionizes the catalogue raisonne as we know it." Read the announcement at Georgia O'Keeffe Museum.
A catalogue raisonne is a comprehensive, annotated listing of all known works by an artist. The French term means "reasoned catalogue" or "classified catalogue." It is the definitive reference for an artist's oeuvre: every painting, drawing, sculpture, or print attributed to the artist is listed with its dimensions, medium, date, provenance, exhibition history, bibliography, and current location. A catalogue raisonne is the closest thing the art world has to a complete biography of an artist's output. Inclusion in the catalogue is itself a statement of authenticity, and exclusion can destroy a work's value overnight.
This entry covers what a catalogue raisonne is, how it is compiled, who produces it, how the format has shifted from print to digital, and why it matters for collectors, scholars, and museums.
What Is a Catalogue Raisonne?
A catalogue raisonne documents every known work by an artist. Each entry typically includes: a catalogue number, title, date, medium and support, dimensions, signature and inscriptions, provenance (chain of ownership), exhibition history, literature references, condition notes, and a photograph. The entries are organized chronologically, by medium, or by catalogue number, depending on the project's system. The catalogue also includes scholarly essays on the artist's working methods, materials, and development, as well as concordances cross-referencing earlier catalogues.
The catalogue raisonne serves three functions. It is a scholarly tool, providing researchers with the data needed to study an artist's development. It is an authentication tool, since inclusion in the catalogue is a statement that the work is by the named artist. And it is a market tool, since a painting listed in the catalogue raisonne is worth more than an identical painting that is not. This last function makes the catalogue raisonne a source of legal and financial controversy. The Andy Warhol Art Authentication Board, which dissolved in 2011, was sued multiple times by collectors whose works were excluded from the Warhol catalogue.
For most of their history, catalogues raisonne were printed books. They were expensive to produce, took decades to compile, and were obsolete the day they were published, because new works would surface, attributions would change, and provenance records would be updated. The print format also limited access: a catalogue raisonne might exist in a few hundred copies, held by major libraries and research institutions, unavailable to most scholars and collectors.
The shift to digital has transformed the field. The Georgia O'Keeffe Museum's Access O'Keeffe project, launched in March 2026, is built on a linked data platform that allows the catalogue to be updated in real time as new scholarship emerges. The museum's curator of digital experience, Liz Neely, said: "A catalogue raisonne has long been considered the final word on an artist's work. With Access O'Keeffe, we're flipping that idea on its head, transforming it into a living dialogue where new voices, discoveries, and perspectives can continuously reshape what we know about Georgia O'Keeffe." The platform allows visitors to browse by color, shape, or medium, trace historic exhibitions, and download images including letters O'Keeffe wrote and photographs she captured.
The Wildenstein Plattner Institute (WPI) has been a leader in digital catalogue raisonne publishing. In March 2026, WPI released the Eva Gonzales Catalogue Raisonne Project, the first digital catalogue raisonne for a female artist on its portal. Gonzales was one of the few women associated with the Impressionist movement. The project builds on the 1990 print catalogue by Marie-Caroline Sainsaulieu and Jacques de Mons, digitizing the original research and adding links to primary sources, updated cataloguing, and new critical scholarship by Sophie Pietri. The entry for "La Nichee," exhibited at the Salon of 1874, includes links to press coverage in five contemporary newspapers. Read the announcement at Wildenstein Plattner Institute.
The digital format also enables ongoing revision. The Edgar Degas digital catalogue raisonne, maintained by Michel Schulman and launched in 2019, includes more than 1,800 pastels and paintings and 1,600 drawings, along with nearly 3,300 exhibitions, 1,700 bibliographic references, and 6,100 auction sale records dating back to 1875. Schulman describes it as the result of about twenty years of research, noting that "lost or new works surface, as has been regularly the case since the launch of this digital catalogue raisonne in 2019." Explore the catalogue at degas-catalogue.com.
How a Catalogue Raisonne Is Compiled
Compiling a catalogue raisonne is a multi-year or multi-decade project. The compiler begins by gathering every known work by the artist, drawing on museum collections, private collections, auction records, exhibition catalogues, archival documents, and earlier scholarship. Each work must be examined, photographed, measured, and documented. Provenance must be traced from the artist's studio to the current owner, which can require years of archival research. Attributions must be verified, and disputed works must be evaluated.
The Martin Wong Catalogue Raisonne, based at the Cantor Arts Center at Stanford University as part of the Asian American Art Initiative, demonstrates the scope of such projects. It features detailed records of over 800 works of art, including paintings, drawings, poetry, and ceramics, along with new essays by scholars and curators, a comprehensive illustrated chronology, primary source materials, interviews, a 1991 recording of Wong speaking about his work, and a film portrait. The project is a collaboration between the Martin Wong Foundation, Stanford Libraries, and the Cantor Arts Center. Explore the catalogue at martinwong.org.
Key Catalogues and Their Compilers
Barbara Buhler Lynes and Georgia O'Keeffe
Lynes published the "Georgia O'Keeffe: Catalogue Raisonne" in 1999, documenting more than 2,200 works. The print catalogue was the definitive reference for two decades. In 2026, the O'Keeffe Museum transformed Lynes's work into the Access O'Keeffe digital platform, updating it with contributions from 130 institutions and making it freely available online. The project was supported by the Institute of Museum and Library Services.
Marie-Caroline Sainsaulieu and Eva Gonzales
Sainsaulieu and Jacques de Mons published the first Eva Gonzales catalogue raisonne in 1990, working with sparse records from dealer stock books and a single 1950 book by Claude-Roger Marx. The 2026 digital update by WPI, with lead scholar Sainsaulieu and archivist Sophie Pietri, adds links to primary sources, updated cataloguing, and new critical research. It is the first digital catalogue raisonne for a female Impressionist on the WPI portal.
Michel Schulman and Edgar Degas
Schulman's digital catalogue raisonne of Degas, launched in 2019, is the result of twenty years of research. It includes more than 1,800 paintings and pastels and 1,600 drawings, a corpus never assembled before. The site also features nearly 3,300 exhibitions, 1,700 bibliographic references, and more than 6,100 lots sold at public sales since 1875, along with an in-depth study of Degas's signatures.
The Corpus Rubenianum Ludwig Burchard
The Corpus Rubenianum is the ongoing project to publish a definitive catalogue of Rubens's work, based on the research of Ludwig Burchard. Organized into more than 30 parts, each written by a specialist, it has been published progressively since the 1960s. It is the authoritative reference for Rubens attribution and is consulted by scholars, auction houses, and museums worldwide.
Why Catalogues Raisonne Matter
The catalogue raisonne is the backbone of art historical scholarship. It provides the data on which all other research depends: without knowing what an artist produced and when, you cannot study their development, their influences, or their legacy. For the art market, the catalogue raisonne is a gatekeeper. A painting that appears in the catalogue is considered authentic. A painting that does not is suspect. This gives the compiler enormous power, and that power is sometimes contested. The Rembrandt Research Project, which published its findings over four decades, downgraded dozens of paintings from "Rembrandt" to "studio of Rembrandt," destroying millions of dollars in value and generating fierce debate among scholars.
The digital format is democratizing access. Where a print catalogue might exist in a few hundred library copies, a digital catalogue is available to anyone with an internet connection. The WPI's digital corpus methodology provides "full transparency on the progress of research," allowing users to see which works have been examined and which are still under review. This transparency was impossible in the print era.
The catalogue raisonne is connected to authenticity, since inclusion in the catalogue is itself an authentication. It depends on provenance research, which traces the ownership history of each work. It intersects with attribution, since the compiler must decide which works are by the artist and which are not. The conservator provides the technical analysis that helps compilers verify attributions. For more on how the art market uses catalogues raisonne, read our post on understanding art auctions or our guide on why provenance matters.
Using Catalogues Raisonne
If you are researching an artist, the catalogue raisonne is your starting point. For O'Keeffe, visit access-ok.gokm.org. For Degas, visit degas-catalogue.com. For Eva Gonzales, visit the WPI portal at wpi.art. For Martin Wong, visit martinwong.org. Many older print catalogues have been digitized by libraries and are available through the Getty Research Institute, the Metropolitan Museum of Art's Watson Library, and the Institut national d'histoire de l'art in Paris.
For more on the tools scholars use to study art, read our entries on provenance and attribution, or explore our post on how to research an artwork before buying to learn more about the resources available to collectors and scholars.