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What's the rush?

http://norvig.com/21-days.html

Learning C is difficult because you need to know how the machine actually works. Trust me, there are no shortcuts. The year can be 2036, learning C will be the same.

With that said, these books are excellent:

http://www.amazon.com/Programming-Language-Brian-W-Kernighan...

http://www.amazon.com/Expert-Programming-Peter-van-Linden/dp...

http://www.amazon.com/Primer-Plus-6th-Developers-Library/dp/...

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