This is definitely not an authority on SEO but it is very good nonetheless. I listen to tons of audiobooks that are extremely wordy and three times as long as I need to be. However, this book was on point, brief, and good. The only thing that would make it better is if it included some information on things not to do that could really mess up your Google rankings.
Good stuff - just right for beginners. I have run several Google ad words campaign before and found this very good.