I can only confirm the previous speakers, this book is more than disappointing.
Not only that the book ends with defeating the Champs (which is absolutely not the end of the story is), there are also provided false tips, such as the fight against Diantha where the attacks of their Gardevoir completely wrong are listed as one has oriented only to the attacks of a wild Guardevoirs same level here, absolutely grottig. From the in any case immediately conducted mega-development of Guardevoirs and the associated change type to mention, here denied the game guide across the board (and that was just one example).
In general, almost nothing to read except that it exists in the book of the mega-development. No pictures. No localities of the mega-stones. No evidence that will carry out an enemy with a mega-development and to top it off:
The artworks have been apparently not yet ready for release date !!! There is a lack in the overviews of the Gym Leader Pokémon eg just the images by some POKÉMON !!! Instead, then there just a gray Pokéball seeing DO YOU WANT US kidding ?!
And to have the back then the already written on the last page a text about the oh so great author so many horny Guides ... really presumptuous second to none, got the book before days but get me only now dare to review so full of hate I was !!!