This book is the perfect look behind the magic! It's one of the best movie I ever saw series encyclopedias. It's done with so much love in detail and there are so much information, sketches and pictures. Actors talk about Their character and How They improved thru the years. There are so much precious artefacts like the Marauders-map, the letter from Hogwarts to Harry or Proclamations. If you wanna know why Dementors glide the way They Do - If You wonder how Hippogriffs fly ... it's all in deed book. But You Also Read how the Hogwarts architect did the moving staircases work. You are a real fan of Harry Potter? So you seriously need this book - it's an amazing and comprehensive behind-the-scenes look at the making of the Harry Potter film series.