It is a good revelation on some techniques, e.g., Should I use NULL or 0? or So, what’s wrong with macros?. It also answers some design questions, like, about final keyword or pointers and references. However you should read Design and Evolution of C++ to understand the philosophy behind the C++ design.
These are not mandatory rules, just Stroustrup’s take on certain issues that can solve some everyday problems/doubts of a C++ programmer. And what better authority than the creator himself. Check it out!
Copyright Abhijit Nadgouda.