Free Books for LInux and open source

[Manilal K M]

here are some of the links which has spme free e-books. I am sorry
that some are available in proprieatary formats. I have read some of
the books in PDF and sounds good.
http://austin.youareinferior.net/books/
http://lab.lpicn.org/pub/books/
http://www.linuxmine.com/download.html
http://files.nixp.ru/books/unix/

regards
Manilal