The book itself is informative and gives you great guidance on how to use Nutritional Yeast. The only flaw is the medium. I bought the kindle edition and have found a problem. It is not easy to flick through and find a recipe. The kindle medium works well for books where you go in one direction only, but with recipe books I like to skip sections, mark recipes I want to try and generally play about whilst I am in the kitchen- a Kindle does not allow you to do this. So if you are thinking of buying this book get it in paperback.