Datasets:

sayshara
/

openlibrary

tags:
  - openlibrary
  - bibliographic
  - books
  - parquet
license: cc0-1.0
configs:
  - config_name: authors
    data_files: authors/*.parquet
    description: All OpenLibrary author records.
  - config_name: editions
    data_files: editions/*.parquet
    description: All book-edition records (ISBN-level).
  - config_name: works
    data_files: works/*.parquet
    description: Abstract “work” records (title-level).

📚 OpenLibrary Parquet Mirror

An up‑to‑date, stream‑ready mirror of the official OpenLibrary public data dumps, converted to snappy‑compressed Parquet.

Source: https://openlibrary.org/developers/dumps

💾 Repository organization

openlibrary/
├── authors/   # authors_0.parquet, authors_1.parquet, … (≈ 1-2 GB each)
├── editions/  # editions_0.parquet, editions_1.parquet, …
└── works/     # works_0.parquet, works_1.parquet, …

🏃 Quick start

from datasets import load_dataset

# stream authors only
authors = load_dataset("sayshara/openlibrary", "authors", split="train", streaming=True)
for i, rec in enumerate(authors):
    if i == 5:
        break
    print(rec["name"], rec.get("birth_date"))

📝 Schema notes

Missing columns for a given record are stored as NULL.
Top‑level JSON objects from the dump are flattened; nested structures are preserved as JSON‑encoded strings.
The raw JSON produced by OpenLibrary loosely follows per‑entity schemata maintained in the openlibrary‑client repo:
- authors.schema.json → governs objects from ol_dump_authors_latest.txt.gz.
- editions.schema.json → governs objects from ol_dump_editions_latest.txt.gz.
- works.schema.json → governs objects from ol_dump_works_latest.txt.gz.

Field example	Type	Notes
`key`	string	e.g. `/authors/OL23919A`
`latest_revision`	double	revision id (via OL)
`birth_date`	string	free‑text date
`remote_ids`	string	JSON string of `{"wikidata": "Q42"}`

📜 License

OpenLibrary dedicates its catalog data to the public domain under the CC0 1.0 Universal (Public‑Domain Dedication) license. 

For more information, see: https://openlibrary.org/help/faq/using

Because this Parquet mirror is a direct transformation of that catalog, all files in this dataset are likewise released under CC0 1.0. You may copy, modify, redistribute, and use them for any purpose without permission or attribution. (Attribution to OpenLibrary/Internet Archive is appreciated but not legally required.)

Maintainer • @sayshara