Check how libraries identify the author

Search LC Authorities for the author name

Search the Library of Congress name authority file to see whether an authorized form of your name exists, what it looks like, and whether it could be confused with another author.

OptionalOwner: AuthorYou: Do itFreeAll publishing paths

Authors often hire help with this: library or cataloging.

Why it matters

The authorized heading is how libraries gather your books together and keep them separate from another author's. If you share a name with someone, or publish under more than one form of your name, the authority file is where confusion is prevented or created. Knowing what is there lets you talk to catalogers precisely instead of vaguely.

Your part

What you do
Do it. You normally do this yourself.
Who normally owns it
Author. Author searches; NACO catalogers create and edit the records
When
At publication (Check how libraries identify the author: after publication, once a library has cataloged the book)Checked September 13, 2026 (opens in a new tab)

How to do it

The full walkthrough

Libraries do not file books under whatever name appears on the cover. They use an authority file, a controlled list of authorized name headings, so that all of one author's books gather under one heading and two authors with the same name are kept apart. The Library of Congress Name Authority File is the one most libraries in the United States use, and it is searchable at LC Authorities (authorities.loc.gov (opens in a new tab)) and at id.loc.gov (opens in a new tab).

Search for your name in the forms it might take: as printed on the book, with and without a middle name or initial, and under any earlier or pen names. What you are looking for is an authority record: an entry with an authorized heading, often with a birth year or other qualifier, and sometimes with notes citing the books it was created from. Note whether one exists, what the authorized form is, and whether there is another author with a similar name who could be confused with you.

What an author cannot do is create or edit one of these records. Authority records are made by catalogers at institutions participating in the Name Authority Cooperative Program (NACO), usually when they catalog a book by an author who does not yet have a heading. There is no author registration, and no form to fill in. If no record exists, the practical route is the next item; if one exists and is wrong, a participating cataloger (often reachable through the publisher, a university library, or your local library) can request a change.

Do this at publication. The most common time for a record to be created is when the first library catalogs the book.

Common mistakes

  • Looking for a way to register or claim the record; there is none.
  • Searching only the exact cover name and missing a heading created under a fuller form.
  • Assuming the absence of a record is a problem to fix yourself.
  • Confusing an authority record with an ISNI or a VIAF cluster, which are related but different.

Identifiers for Search LC Authorities for the author name

Set a status on any record and it joins this step. All author identifiers.

Book and author identifiers
My statusIdentifierWhy this mattersYours
LC/NACO name authority record
The record that fixes one authorized form of your name for library catalogs and keeps you apart from writers with similar names.

A name authority record is the library record used to identify you as an author and distinguish you from other people with the same or similar names. It includes an authorized access point, the standardized form of your name used in library catalogs that follow Library of Congress practice. The record helps libraries connect your books to the right person, so if it is wrong, incomplete, or confused with another person, your books can be associated with the wrong author or become harder to find together. Most new authors won't have a name authority record until a library has a reason to create one, and that's normal. Authors can't create or directly edit their own LC/NACO authority records, so the practical step for every publishing route is to search and check. Traditionally and hybrid published authors may be able to get help through their publisher's library-facing staff, while self-published authors will generally need to work through a library or cataloger that participates in NACO. Search every name you publish under and keep enough identifying information handy for a cataloger to distinguish or correct your record if needed.

Add your Library of Congress name ID
NACO
The Name Authority Cooperative Program: the arrangement that trains and authorizes the librarians who create name records.

In practice this matters only once something has gone wrong, such as your books being filed under another writer's name or your own books being split between two entries. The useful thing to know is that the fix has to be made by a trained cataloger at a participating institution and that no fee shortcuts it, so a service offering to create your authority record for money should be treated with suspicion. There is nothing to join and no real difference between the routes here: on all three, the only move is normally to ask, at a university library, a large public library, or through the publisher's library-facing staff. Find a cataloger who can act and give that person the plain facts that separate you from another author.

Nothing to record
ISNI
The International Standard Name Identifier: a sixteen-digit number that says which creator you are when several people share a name.

Without a shared number, databases across publishing and libraries have no agreed answer to which person wrote what, which is how one writer's books end up grouped with another's. It matters most if you have more than one book, share a name with another writer, or work with a publisher that already carries these numbers in its metadata; a first-time author with an uncommon name and one title can reasonably do nothing. You may have one already, because many are created from data that libraries and other contributors feed in, so on every route the first move is normally to search the database rather than to request anything, and a traditionally published author can also ask whether the publisher requests them as part of its metadata practice. Record the sixteen-digit number only after checking that the works under it are yours.

Add your ISNI
VIAF
The Virtual International Authority File: a service that links the records different national libraries keep for the same author.

If your books are split across two entries, or mixed in with another writer's, this is where you can see it, because it draws together what the contributing library files say about you. A first-time author will often find nothing here yet, and that is normal rather than a gap. Nobody on any route can claim, create, or edit an entry, so all three routes do the same thing, which is look; a wrong cluster is a symptom of a problem in one of the source files, and the fix normally has to be made there, through a cataloger or the relevant national library. Check that the works in the cluster are yours and record the identifier if the cluster is right.

Add your VIAF number

What done looks like

  • LC Authorities searched for every form of your name and any pen name.
  • The authorized heading, if one exists, recorded in the Book Identity Sheet exactly as written.
  • Any similarly named author noted, with the qualifier that distinguishes you.
  • A clear understanding that authors do not create or edit these records themselves.
  • Discrepancies prepared for a conversation with a participating cataloger.

Evidence. Done means someone says the work happened. Verified means you checked the confirmation, link, or public record yourself.

Sources and last checked

Last checked
September 13, 2026
How confident we are
Verified

Rules and deadlines change. We last checked this information on September 13, 2026. If you see something that needs updating, please tell us.