The ~1,920 most-downloaded free ebooks on Project Gutenberg
This isn't anyone's personal collection — it's a curated reference list of confirmed public-domain classics, ranked by Project Gutenberg's own real download counts (not a subjective "greatest books" list). No passphrase needed; it's public because these works genuinely are. Tap a book to read a short summary and get a direct link to the free full text, readable right on this site with adjustable font/size.
The 3D Room walks you through the top 500 of these as a physical shelf you can browse.