ReK2 reviewed The C Programming Language by Brian W. Kernighan
Best C book ever to start
5.0 stars
If you are into Unix and systems programming or hacking this is a must

Brian W. Kernighan, Dennis M. Ritchie: C 程序设计语言 (Chinese language)
Very well known, classic introduction to the C Programming Language. Both a text for learning, a reference, and, to some, the definition of proper C language features and use.
Chinese language
If you are into Unix and systems programming or hacking this is a must