Browse indexable science and education x402 offerings, including provider, method, and service details.
1729 indexable offerings in this category.
Free public-domain books on "Aesthetics": the catalogue's works tagged with that Library of Congress subject (82 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Africa": the catalogue's works tagged with that Library of Congress subject (147 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "African Americans": browse the catalogue's works tagged with that Library of Congress subject (424 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Agriculture": the catalogue's works tagged with that Library of Congress subject (126 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Airplanes": the catalogue's works tagged with that Library of Congress subject (85 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Alaska": the catalogue's works tagged with that Library of Congress subject (93 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "America": the catalogue's works tagged with that Library of Congress subject (155 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "American drama": the catalogue's works tagged with that Library of Congress subject (133 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "American essays": the catalogue's works tagged with that Library of Congress subject (123 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "American fiction": browse the catalogue's works tagged with that Library of Congress subject (434 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "American literature": browse the catalogue's works tagged with that Library of Congress subject (261 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "American periodicals": the catalogue's works tagged with that Library of Congress subject (150 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "American poetry": browse the catalogue's works tagged with that Library of Congress subject (492 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "American wit and humor": browse the catalogue's works tagged with that Library of Congress subject (202 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Americans": browse the catalogue's works tagged with that Library of Congress subject (267 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Animals": browse the catalogue's works tagged with that Library of Congress subject (648 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Architecture": the catalogue's works tagged with that Library of Congress subject (150 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Arctic regions": the catalogue's works tagged with that Library of Congress subject (124 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Aristocracy (Social class)": the catalogue's works tagged with that Library of Congress subject (101 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Artists": the catalogue's works tagged with that Library of Congress subject (140 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Astronomy": the catalogue's works tagged with that Library of Congress subject (100 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Aunts": the catalogue's works tagged with that Library of Congress subject (127 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Australia": browse the catalogue's works tagged with that Library of Congress subject (234 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.
Free public-domain books on "Authors": the catalogue's works tagged with that Library of Congress subject (105 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct download links. Add words to narrow. Re-verified daily. $0.01 per page of 20.