C Tutorial

Hey, I know some basics of Python, C++ and Lua programming - especially Python. But now I want to dive deeper into the world of C++ and therefore I thought that I definetely should start with C if I want to understand it completely and be able to read already available sources. Anyone got a good recommendation for a C tutorial? (Crash-course would be great, something I can read in 2-3 hours)

>>19
List some differences which aren't superficial syntactical changes. Go on

I shall, but first list some differences between C/python/brainfuck/x86 assembly/lisp/haskell/befunge/intercal/... which aren't superficial syntactical changes. After all, they're all Turing Complete.