The thing I found is that most people use the creativity Buzon aspires to a lot in their normal every day life - without knowing they do! That's where this book comes in, because it documents the creative steps/methodologies that you use sub consciously, when you do need them in a focused manner, you know exactly what to do, rather than "fumbling" with your given situation, ergo 5*'s.

The book itself is divided into 10 chapters, each one concentrating on different aspects of creativity. I personally would recommend that you buy Buzon's Head First, first, that will give you a good overview, and then you can move into the more specialised areas of intelligence