The below link has a LOT of C books. These books appear to be for learning C on a PC and there are at least some people here that are proponents of learning C on the PC first. I thought I would post this link since there are fairly regular requests for learning C books. Maybe this will help someone.
Sorry, the above is this sellers entire collection of stuff for auction, you will need to scroll down a bit.
 I did not add this to the Sticky thread because the auction ends in approx. 2 days.