What a Catalogue Raisonne Is, and Why Its Entries Get Fought Over

What it is, according to the people who compile them

A catalogue raisonne is a published compendium of an artist's complete works, or of a defined subset of works, with descriptions, dimensions, provenance, exhibition history and literature for each entry. That is the Wildenstein Plattner Institute's own definition, and the institute follows it immediately with two qualifications that the market systematically ignores.

The first concerns objectivity. Because of the reasoned approach the form requires, catalogues raisonnes often acknowledge the authors' biases and narratives, and readers are encouraged to consider the compendiums as authored publications rather than objective resources. The second is blunter still: the institute stresses that a work's inclusion in a catalogue raisonne is not a guarantee of its authenticity.

The Catalogue Raisonne Scholars Association describes the work in similar terms, as researching a single artist's body of work to establish a reliable list of authentic works. Reliable is not the same as definitive, and the difference between those two adjectives is the source of nearly every dispute that follows.

The form also carries a built-in obsolescence that its users tend to forget. A catalogue records the corpus as known at the time it was prepared, which means that the moment of publication is the last moment at which it is complete. Everything discovered afterwards, every attribution revised and every forgery detected, sits outside it until somebody funds a supplement. A researcher who cites a catalogue is therefore citing a dated snapshot of an opinion, and the strength of that citation decays year by year in a way that a reference to a signed document does not.

The authority is conventional, and a court has said exactly that

No statute makes a catalogue raisonne definitive. It becomes so because the market and the museums treat it that way, and in 2009 the New York courts described that mechanism with unusual precision. Joel Thome owned theatrical stage sets and a maquette that Alexander Calder had made in 1976 for a revival of Satie's Socrate. In 1997 he asked the Calder Foundation to authenticate them and to include them in its catalogue raisonne. The Foundation acknowledged receipt and never responded.

The Appellate Division held on 1 December 2009 that there is no legal obligation, either to the public at large or to owners of artwork, to authenticate that work. Its reasoning went to the nature of the document: whether the art world accepts a catalogue raisonne as a definitive listing is a function of the marketplace rather than of any legal directive, the creation of such a catalogue is a voluntary act, and its contents are not controlled by any governmental regulatory agency. Judge Saxe added that courts are not equipped to deliver a meaningful declaration of authenticity.

The Calder Foundation's published position matches the ruling. Registration, it states, documents works attributed to Alexander Calder in the archives of the Foundation; submission does not guarantee registration and does not create a contract for the purpose of authentication; and the Foundation does not provide certificates of authenticity. A compiler is free to say nothing, and there is no remedy for silence.

Exclusion is the event that destroys value

Inclusion is worth money and exclusion can be terminal, which is why entries are fought over rather than debated. Pierre Lagrange bought an untitled Pollock from Knoedler in November 2007 for USD 17 million. The work was not listed in the artist's catalogue raisonne, and the gallery assured him that the newest supplement would include it. When he came to sell, both Sotheby's and Christie's refused to handle the picture, citing authenticity, provenance and the catalogue omission. Forensic examination then found anachronistic pigments, and suit was filed on 1 December 2011.

The Warhol case runs the other way and is uglier. Joe Simon-Whelan's silkscreen self-portrait, bought in 1989 for USD 195,000 after the Foundation had itself authenticated and stamped it, was submitted to the authentication board in 2001 and 2003 and denied both times, with DENIED stamped on the reverse. The Art Newspaper recorded that the board rejected a signed and dated work from the same series despite its inclusion in Rainer Crone's 1970 catalogue. A picture can be in one authority and out of the next, and the market follows the newer one.

The Dedalus Foundation supplies a third pattern: it issued a letter of authenticity for a Motherwell, then withdrew the letter and dropped plans to include the work in the catalogue raisonne. In each case the object did not change. Its saleability did, entirely, on the decision of a private body with no duty to explain itself.

Who funds the corpus has an interest in its size

The Wildenstein Plattner Institute is candid about the history. By the nineteenth century art dealers created and used catalogues raisonnes to influence an artist's financial success, and dealers, auction houses and sellers interested in influencing the market invested considerable finances into these scholarly cataloguing projects. The institute quotes Antoinette Friedenthal to the point: rarely does the interaction of market and scholarship become so evident as it does here. It also notes that the work depends on third-party stakeholders who hold important archival information and control access to the works themselves.

The scholars' own bodies have written the conflict into their guidance. The Catalogue Raisonne Scholars Association's guidelines direct that scholars should follow ethical practices of research for the sake of pure knowledge, and single out those employed by a commercial gallery or an artist's foundation with a strong presence in the art market. The same document concedes that a negative opinion can provoke an angry reaction, and that even a signed agreement does not guarantee protection from a frivolous lawsuit.

The College Art Association went further in guidelines adopted in October 2009, recommending that experts not render an authentication or attribution opinion absent insurance, indemnification and a signed release, and that they remain sensitive to the damage a publicised negative opinion can do to the reputation of an owner and the value of the object. Abigail Gerdts, director of the Winslow Homer catalogue raisonne, stated the conclusion many compilers reached privately: the stakes are just too high, and we should all get out of the opinion giving business.

Editions change, and the field's index has just gone dark

A catalogue raisonne is not permanent. Second and third editions add works discovered since and remove works the compiler no longer accepts. A picture in the 1978 catalogue and absent from the 2011 one has been demoted by the only body whose opinion the market reads, usually without an announcement. This is why a record should cite the edition and not simply the catalogue, since a reference to inclusion without a year is not a fact about the present.

Multiplicity compounds the problem. The Art Newspaper has recorded that there are at least five catalogues raisonnes of Modigliani's work, an artist around whose canon the Modigliani Institute's president was arrested by the Italian art forgery unit over alleged fakes and certificates. Where several competing corpora exist, inclusion is a claim about which authority a seller has persuaded rather than about the object.

The infrastructure for tracking any of this has just been removed. The International Foundation for Art Research maintained the standard index of catalogues raisonnes, covering, on its own last published figure, more than 5,000 published catalogues and catalogues in preparation, with links to hundreds of fully digitised online catalogues. IFAR announced its wind-down in September 2024 after fifty-five years, and its catalogues raisonnes database has returned an error since around September 2025. No successor has taken the function over. Anyone checking whether an artist has a catalogue, and which edition is current, now has no central place to look.

What it means for an artist with no catalogue at all

Many artists have no catalogue raisonne, or an old and inadequate one, and in those cases attribution reverts to argument between specialists. Cimabue is the extreme case at the origin of the Western canon. No modern catalogue raisonne is cited in the standard literature; the most recent dedicated treatments are monographs, including Holly Flora's study and the Louvre's 2025 exhibition volume edited by Thomas Bohl. Donal Cooper, writing in Apollo in 2019, put the accepted corpus at fewer than ten accepted works on panel.

There is no register to appeal to, and there is no authority to sue. Attribution proceeds by publication and counter-publication, which is slower, less decisive, and considerably more honest about its own uncertainty than a foundation's yes or no. A dispute about a Cimabue is a dispute about how a small group of objects should be divided; a dispute about a Warhol is a dispute about what a private board stamped on the back.

The mismatch is the whole subject. A catalogue raisonne is a scholarly document, described by its own compilers as authored rather than objective, that the market reads as a register of title. The courts have declined to convert the one into the other, the compilers have asked not to be treated as issuing title, and the market has carried on regardless, because it has nothing else.