Look at the reviews carefully. I bought this book based on all the 5-star reviews. After reading it (in about an hour), I decided to take a closer look at those reviews. If you look closely you will notice that all the reviews are written at the same time in February and October. That is suspicious to me. After reading the book myself, I question if they are real.
The book is very basic and short. 101 pages, large text with double spacing and very little formatting. It feels and reads more like a short article. The content does not come across as professional. The information is common sense and some of the examples provided are awkwardly written. In short, it left me wanting more. I wanted the helpful book those 5-star reviews described. This was not that.