You can search some online, I searched up chess pdf on a google chrome browser and some links such as these ones came up:
http://www.fellowshipabbey.org/files/Fischer,%20Bobby%20-%20Bobby%20Fischer%20Teaches%20Chess.pdf
www.qualitychess.co.uk/ebooks/PositionalPlay-excerpt.pdf
You can just search up chess book pdf and many download links come up.
Why is it so important that they are free? I mean, it's easy enough to use BitTorrent or whatever to find entire libraries, but Amazon is full of books (including used ones for cheap), and you're not limited to whatever someone happens to have scanned.
In any case, I'll throw in a recommendation for My System by Aron Nimzowitsch (and its sequel, Chess Praxis). You can probably find both through BitTorrent.
Why not I have no credit card to pay the bill. I think you got the point now Mr. Wilford-n
I found a ton of good books at the library. Even had some chess movies. I'd start there 
You can use torrent files since good books are not readily available in bd. Try reading: Art of Attack by Vukovic a very very good intermediate level book
Can anybody provide the link for the book- Ruy lopez: move by move by Neil Mc Donald ?
@JellyBean2015 do u still need it?
Its'free?
Scribd and PDFdrive For Online Chess Book Reading, Downloading…
https://www.chess.com/blog/RussBell/scribd-com-for-online-chess-book-reading
I need some intermediate level free chess book link. Would anybody tell me please some free pdf link?