I've made one flower arrangement for a girl's birthday at work; and since then all the girls at the office want one too. So I've made about 16 different flower arrangement, and I have about 16 more. Please, if you want to purchase this book, you have to first learn how to say... No.
It is a wonderful book, along with "Origami Flowers" by Hiromi Hayashi. Yet please note, in both books you cut, glue, and paste. They are not books on how to make an origami flower from a single square of paper by folding only. Also they are not a book I would recommend for a beginner origami folder (and no, you don't have to be an expert either).