This book does an excellent job of cataloguing all of the ephemera from the sets and costumes. Oftentimes, you'll read about a prop that was barely even seen in the movie, but you still get the sense that it helped make the scene feel more believable, or that it helped the actors realize their character more fully. You get to learn a lot about how each performer got into their role, what they thought about their character, and what a dream it was to participate in the Harry Potter universe. With pictures and interviews from the cast and filmmakers, this book was wonderful to read about the process behind the screenplay and movie.