This book is basically used for a bioinformatics class in France and translated in English. I've been working on developing tools for ncRNA gene predictions and this book clarifies of the mystery in genomics what I could not reach by biology books. Using pictures and figures, it's a pretty much comprehensive book. If you are a novice in bioinformatics field, I would recommend reading this book. However, if you expect to learn something in more specific such as machine learning or etc., then you may be disappointed.