The Encyclopædia Britannica, Eleventh Edition (1911) — Complete and Searchable

"Everything Explained That Is Explainable."

The 11th edition remains the most celebrated reference work in the English language, the one people mean when they say the Britannica.

This is the complete work as a single ebook. 36,691 articles. 28 volumes. 44 million words, with over 10,000 original illustrations, maps, and plates.

It is not a scan, and not an OCR dump. Every article is transcribed, corrected, and typeset for reading, with the whole apparatus of the original preserved and made navigable, and with the maximum possible fidelity to the original source.

- Instant full-text search and title search of the full corpus, entirely offline. Unique to this edition.

- Browse as the printed volumes divide — Volume 1 · A – ANDROPHAGI through Volume 28 · VETCH – ZYMOTIC — or by the classified topic index, or by contributor. Three clicks to any article; every article shows its place in the topic hierarchy. Try Volume 1 free.

- Cross-references throughout: article-to-article links, contributor bylines linked to a full contributors' index, also unique to this edition.

- The complete front matter: an editor's introduction to this edition, Hugh Chisholm's 1910 Editorial Preface, and the Historical Preface tracing the Britannica from 1768 — plus the contemporary Reader's Guide, with its curated courses of reading linked directly into the work.

DRM-free EPUB · ~550MB · yours permanently. Reads in any modern EPUB application; a desktop reader (Thorium, Calibre) is recommended for the search features. Purchasers receive corrected editions as free re-downloads. (Corrected: 8/15/2026)

From Aaron Haspel, the maker of britannica11.org, the complete online edition.