Springer Textbooks More Than 10 Years Old Available for Free Legal Download
Sooo many good books! I'm exhausted!  
Here are some good ones:MPEG Video Compression Standard:http://link.springer.com/book/10.1007/b115884Chaos and Fractals:http://link.springer.com/book/10.1007/b97624Proofs from THE BOOK:http://link.springer.com/book/10.1007/978-3-662-05412-3Joel on Software:http://link.springer.com/book/10.1007/978-1-4302-0753-5Programming Challenges:http://link.springer.com/book/10.1007/b97559