http://technotip.com/6157/keywords-constants-variables/
To learn any language we need to first learn alphabets, then we learn to write sentences and then to write paragraphs. Similarly, in learning C programming language, we first learn about the Character Set(Alphabets, Digits, Special Symbols), next we learn words(keywords, variables, constants), and then we learn statements(C programming instructions), and then we write C programs.
C Programming: Beginner To Advance To Expert
http://technotip.com/6086/c-programming-beginner-to-advance-to-expert/
