This site lists free online computer science books and lecture notes, all of which are freely and legally available over the Internet. All the books listed on this site are available for free, as they are hosted on websites that belong to the authors or the publishers.

These authors publish their books for free to give you a chance to review their books, to get as much good information distributed as possible. So, if you like what you read online, you can always support the authors by buying the paperback at your local or online bookstores.

Read more: FreeTechBooks.com