C is not the place to look for good core concepts. I recommend http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-001-structure-and-interp

C is not the place to look for good core concepts. I recommend http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-001-structure-and-interpretation-of-computer-programs-spring-2005/ http://ocw.mit.edu/courses/electrical-engineering-and-comput... instead.