In this first chapter Get started your going to learn about what are the constants, variables, keywords and data types. After that how to output the results and take input from the user using 'Printf' and 'Scanf' statments. By knowing all this basics things we are going to write, compile and execute our first simple program in C language.
If you already know all these basics things, then you might skip this chapter and go for the next chapter control structures.
Remember :
Never skip any point, which you feel hard or unimportant. It might be very useful afterwards at that time you may need to read twice or thrice to understand it.