This site lists free online computer science, engineering and programming books, textbooks and lecture notes, all of which are legally and freely available over the Internet.
Throughout this site, other terms are used to refer to a book, such as ebook, text, document, monogram or notes.
NONE. All the books listed in this site are freely available, as they are hosted on websites that belong to the authors or the publishers.
In another word, we don’t host the books. We simply provide links to the books in PDF or HTML format available at the authors or the publishers websites.
Please note that (a) we do not host pirated books and (b) we do not link to sites that host pirated books and (c) we do not even link to sites that link to sites that host pirated books.
Each author and publisher has their own terms and conditions in the forms of free / open licenses, public domain or other specific ones.
You are allowed to view, download and with a very few exceptions, print the books for your own private use at no charge. In fact, you are encouraged to tell others about the books.
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With so many links to external websites, dead links bound to happen from time to time. We regularly check for dead links and remove them but sometimes some dead links cracked trough. If you happen to see books with dead links please let us know via the Disqus comment.