Search for Books

these are the main sites to search for books

archive.org

https://archive.org/advancedsearch.php?

Digital Public Library of America

https://dp.la/

Google Books

https://books.google.com/

Online Books Page (search for where a book can be found online)

https://onlinebooks.library.upenn.edu/

Bookfinder (books for sale compares prices)

https://www.bookfinder.com/?ref=bf_s2_hd_1

Here is a link to the World Digital Library that is somehow connected to the LOC. I don't understand this at all. Did it used to exist and this is just an archive you can access? Did they stop uploading to this?

https://www.loc.gov/collections/world-digital-library/about-this-collection/

https://en.wikipedia.org/wiki/World_Digital_Library

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FamilySearch.org you can search for family history books, many can be read online

https://www.familysearch.org/search/catalog

https://www.familysearch.org/library/books/

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If you can't find the book you need to read right now you could see if the kindle edition is available at Amazon https://amzn.to/3ScSlhQ (Affiliate Link)

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this link is just for me (log in to my local library)