Collections
The Tower of Babel is organised into seven collections, holding 2,557,923 catalog records between them. Counts as of 2026-11-10; the catalog grows as new holdings are added. Each collection page below lists real works from that collection, and every work links to its own catalog page.
Papers
1,130,210 works. Research papers and preprints from open scholarly sources — arXiv, PubMed Central, PLOS and other open journals — spanning mathematics, physics, computer science, medicine, biology and more. Each paper has its own catalog record, and the full text is served as a plain text file where text is present.
Law
1,277,197 works. United States law and public legal records: the United States Code, the Federal Register, and historic legal texts preserved alongside them. Each record carries its text where text is present.
Books
81,631 works. Public-domain books: classic literature, philosophy, history and foundational documents, together with the sacred texts of the world's traditions — the library's Sacred Texts shelf is drawn from this collection. Read in the browser, or download the plain text where text is present.
Reference
41,137 works. Dictionaries, encyclopedias and lexicons kept for lookup: Johnson's Dictionary of the English Language (1755), the Hastings Dictionary of the Bible, the Liddell–Scott Greek lexicon, gazetteers and encyclopedic works.
Declassified
26,294 works. Government documents released into the public record: CIA releases, the Foreign Relations of the United States (FRUS) series, FBI files and National Security Archive publications.
Documents
363 works. Founding and historic documents — the Declaration of Independence, the Constitution of the United States and other primary documents — preserved as catalog records with their texts.
Podcasts
1,091 works. Podcast episodes preserved in the library as catalog records, each with a predictable text URL where a transcript is present.