O'Reilly Media, a prominent publisher of technical books, has made many of its titles available for free through various channels. The company's O'Reilly Open Book site offers some free books with Creative Commons licenses, while others are only available online reading or are out of print but now offered for free due to their age. Free coding books cover topics such as R programming, JavaScript design patterns, Clojure, and RESTful web services, catering to both beginners and experienced developers. Additionally, O'Reilly offers a range of media and internet culture books that explore the history and influence of technology, including classics like "The Cathedral & the Bazaar" and "We the Media". Furthermore, the company's Atlas site features other free online books that can be read but not downloaded due to copyright restrictions.