I purchase & played the game for a week with anticipation of excellents & it succeeds. With so many vast challenges, secrets, missions. I needed abit more to solve riddles in depth & with this Official Guide Book elaborates more in depth that corrilates the game. The world of Hogwarts is big to explore & with this Guide Book will help. Wasn't a fan of Wizard World until I played this & this book helps along your journey of understanding the world your playing. Now, I'm a huge fan.