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The Directory of Open Access Books provides free, open access books from academic publishers.

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Google Books searches the world's most comprehensive index of full-text books.


HathiTrust is a partnership of academic & research institutions, offering a collection of millions of titles digitized from libraries around the world.


The following list of websites represent prominent collections of books in electronic format. Because of the size of the collections in each database, there will be some duplication of titles. However, it is best to search through as many of the links as possible to find the title you might be looking for.


Enter the ISBN of a book below to find related FREE open textbooks.