The book is long enough to find out if you will like the rest of the real book, but too short to require payment. This mini book is just a few chapters of the real book and it should be a free sample. The book seems to cover the basics well enough, but certainly has very little depth. Maybe that is why it is for dummies. Also the book seems to display a lot of lists of vintners with no commentary. If you take out the lists you really don't have much book.