Regardless of how you feel about The Rise of Skywalker, most people will admit that the movie at least looked very cool. I, as a fan of TROS, thought that the sets, costumes, and general visuals of the movie were really cool, so it is pretty awesome to get a full fledged behind the scenes scroll through that shows many of the sets throughout the movie.
The booklet covers the movie from start to finish with a ton of great insights into how certain effects were done and what was really created by the production team.
If you want a copy of this PDF for yourself, you can download it here.