Project Gutenberg -

: While primarily known for classic literature, the collection includes audiobooks, maps, and specialized data sets.

is the world's first and largest provider of free electronic books (e-books), hosting a library of over 75,000 titles . Founded in 1971 by Michael S. Hart, it focuses on digitizing and distributing literature for which U.S. copyright has expired, making it a cornerstone of the public domain movement. Core Mission and Philosophy Project Gutenberg

: This key partner site facilitates the conversion of scanned physical books into e-books through a collaborative online process. Legal and Technical Framework Permission How-to - Project Gutenberg : While primarily known for classic literature, the

: Books are provided in simple formats (like plain text and HTML) that can be read, used, and searched by almost any computer or program. Hart, it focuses on digitizing and distributing literature