Django Wexler is rapidly becoming one of my favorite authors. After the Wells of Sorcery series (I still have to add the review of book 3) this was yet another interesting series.
The concept is simple and will appeal to all fantasy readers: magic is real, and can be retrieved from books. Wizards are very adapt readers with lots of experience (we call them 'the old readers'). They all have shape shifting libraries, and get their powers from reading books.
Are you hooked yet?