Explore this collection

Start with a reading choice

Three of the shortest recorded reading commitments in this catalog. Times are estimates, not quality ratings.

Search stored excerpts and compare books → Choose by your preferences →

How these choices and excerpts are prepared

Choices use stored catalog measurements. Estimates vary with reading speed. A shared category is a catalog label, not a claim that two books have the same argument or literary quality.

Search reads excerpt text stored with this catalog and links to its associated Gutenberg record. The connection is stored in the site database; this tool does not recheck that every excerpt is word-for-word identical to that external record. Excerpt search does not cover every chapter and does not verify historical publication dates.

Catalog snapshot checked: 2026-09-26. Coverage: 98 public books, 98 available source excerpts.

Reader tools

Choose, compare, and track a book from this collection

View all tools →
Book Finder What should I read next? Explore 98 public-domain titles by category, subject, length, or reading time. Quickly find books that match your interests. Find a book → Compare Books Put 2 or 3 books side by side Compare books side by side to see differences in scope, length, and focus. Make informed choices about what to read. Compare books → Reading Tracker Track your reading progress Estimate reading time and get insights into text complexity. Plan your reading sessions with realistic expectations. Track reading →

Independent digital catalogue

UPEJU Philosophy & Ethics Library – 98 Books on Knowledge, Ethics, and Logic

The UPEJU Philosophy & Ethics Library gathers 98 public-domain works, all sourced from Project Gutenberg, into four overlapping categories: Ethics, Logic, Metaphysics, and Political Philosophy. The collection spans ancient dialogues, Victorian self-help, theosophy, Bahá'í scriptures, and rationalist critiques, offering a broad view of enduring questions. Editorial notes accompany each title, clarifying context and structure. Whether you begin with Plato's Socratic trilogy, Draper's science-and-religion history, or Unamuno's existential meditation, these reading paths help newcomers navigate. Browse by category or scroll the full list to find works on abolition, animal rights, peace, and more.

98 public-domain works113 represented authorsSource-attributed catalogue records
Browse all books

Browse the catalogue

Explore by Theme

Move through the collection by subject, historical setting and type of source.

View all themes
01

Ethics

A focused group of public-domain works connected by subject, historical context and recurring questions across the collection.

02

Logic

A focused group of public-domain works connected by subject, historical context and recurring questions across the collection.

03

Metaphysics

A focused group of public-domain works connected by subject, historical context and recurring questions across the collection.

04

Political Philosophy

A focused group of public-domain works connected by subject, historical context and recurring questions across the collection.

Philosophy & Ethics — Editor’s Selection

A concise group of works selected to introduce the subjects, source types and historical questions represented in this catalogue.

Newly Catalogued by UPEJU

Recently added catalogue records, listed with author information, thematic placement and links to the available work pages.

Author spotlight

Blavatsky, H. P. (Helena ...

Blavatsky, H. P. (Helena ... is represented in the current catalogue display through works connected with the themes and source types presented on this page.

Catalogue questions

Frequently Asked Questions

How the collection is organized, presented and corrected.

Editorial responsibility

UPEJU Catalogue

Catalogue information

This catalogue is organized using source attribution, bibliographic metadata, subject-based categories, and supplementary contextual notes. Submitted corrections may be used to update catalogue records.

Catalogue explorer

Explore this collection

Browse existing collections, books and author records through several catalogue routes.