Because this is a book of recipes, you will not find a description of C, although to ensure that we are all on the same page (pun entirely intended!), I sometimes include brief explanations of individual features of the language. Chapter 2 also covers some aspects of C that are often sources of mistakes.
For an introduction to C, you can refer to the classical K&R (Kernighan’s and Ritchie’s The C Programming Language), Apress’s ...