Well, the only difference in style to my other schoolbooks seems to be that it approaches the subject with a humorous approach. There's more personality in this book than in my other schoolbooks.
I also tried to reactivate this book but didn't feel anything and it just didn't ring a bell like it did before. Activating the book became a forced attempt.
I'm a bit out of clues here. It's frustrating to get it working once and then have it totally stop working on subjacent attemps.
Any help would be most appreciated.
-phobos
