Education and knowledge

Open Library

Book catalogue for authors, editions and references; reading options vary by title.

Visit the official website ↗
Archived homepage screenshot of Open Library
Archived preview

Screenshot captured on 2026-09-22. The current website may have changed.

A concrete use case

Identify a book edition

Compare author, title, edition and bibliographic information in the record.

Check first: A catalogue entry does not guarantee that the complete text is available.

An open book and notebook in a library
AI-generated contextual illustration · Fictional scene, not a photograph of this organization’s premises or services.
Our worked method

Check the edition and its reading mode

Book edition
Identify the intended publication.
Reading option
Inspect the format actually offered.
  1. Choose the relevant edition, including language and year.
  2. Check the reading mode offered for that edition.
  3. Keep the record before preparing access to the book.

Fictional example: Alex finds a book in the catalogue, but the displayed edition uses another language. He compares editions and access options. He keeps the relevant record without claiming every catalogue book is immediately readable online.

Your useful record: Edition, language, year and displayed access mode.

A catalogue record does not guarantee immediate full-text availability.

Choose another worked method

Editorial method informed by Open Library — Borrowing books. Documentation consulted on . Examples are fictional exercises, not results from a live service test.

Read a link’s bibliographic level

An Open Library address path helps distinguish a work from an edition.

Read a link’s bibliographic level Work → Edition → Precise reference Work Edition Precise reference
Reading guide: the three elements to connect. Details follow in the table.
Fields and distinctions to understand
ElementMeaning
/works/A collection of a work’s editions.
/books/An edition with its own publisher, ISBN and other details.
/isbn/An ISBN lookup that redirects to an edition.

Try the reasoning

Illustrative situation. A /works/ link lists several translations. Does it establish your cited page?

Read the explanation

Choose the edition read, then check language and publication before attributing pagination. The work grouping alone is insufficient.

Documentation for the table : Open Library — Works, editions and ISBN API · . The exercise is an editorial example.

Documented resource details

Separate a work, an edition and reading access

Open Library distinguishes works from their editions. Compare author and title, then choose an edition matching the language, publisher and year required. A catalogue record and an available reading option are separate pieces of information.

Work
Bibliographic grouping for a title.
Edition
A published version with its own details.
Access
Read the options on the specific record.
Language preference versus filter
In the search API, lang=fr prefers a French edition but does not exclude works without one. The query term language:fre instead filters for matching results.
Source: Open Library — Search API · consulted on
Result versus exact edition
Search can return information grouped at work level. For exact pagination or translation, open the relevant edition rather than assign every displayed ISBN to one copy.
Source: Open Library — Search API · consulted on
Online reading edition
An available BookReader edition can be read in a browser.
Source: Open Library — Borrowing books · consulted on
Ebook filter
The eBooks filter can also include DAISY-format results.
Source: Open Library — Borrowing books · consulted on
Does a record guarantee available full text?

No. Check the reading options for the edition; catalogue presence alone does not establish access.

Which link should I share?

Share the exact edition when language, pagination or publication details matter.

Initial profile documentation

Initial profile documentation consulted on . Added details carry their own source and consultation date above.

Decision aids

Work, edition, format and copy: four different levels

An ISBN identifies a publication in a particular edition and format. Match the identifier to the record and the document actually used.

  1. Identify the edition
  2. Compare the format
  3. Check the individual copy
Work, edition, format and copy: four different levels
SituationWhat changesUseful check
Same title, different translationA shared title does not identify the required text.Record translator, language, publisher and edition.
Print and EPUBDifferent product forms receive different ISBNs.Do not automatically transfer pagination between formats.
Well-formed ISBNThe check digit helps detect errors in the number.Check the record: the digit establishes neither assignment nor availability.

A cover does not replace the title page and edition details. For a loan or purchase, also check the volume, condition and availability with its holder.

Documentation : International ISBN Agency — What is an ISBN? ↗ ·

Editorial selection, without website certification. Read our method.