Here’s my personally-selected list of positive, generally pro-prequel books to hunt down and read:
1. The Dharma Of Star Wars by Matthew Bortolin, Wisdom Publications (2005). A Buddhist look at the Star Wars saga. It was published shortly before ROTS came out so its discussion of the prequels is limited to TPM and AOTC, but the whole book is very interesting even if you aren’t a Buddhist.
2. Anticipation: The Real Life Story Of Star Wars Episode I The Phantom Menace by Jonathan Bowen (2005). Nothing but facts about the run-up to TPM’s release and its blockbuster run.
3. Revenge: The Real Life Story Of Star Wars Episode III Revenge Of The Sith by Jonathan Bowen (2007). A follow up on “Anticipation” with more amazing facts about AOTC and ROTS.
4. The Star Wars Heresies: Interpreting The Themes, Symbols and Philosophies of Episodes I-III by Paul McDonald (2013). The title says it all. The essential analysis of the prequel trilogy.
5. Star Wars Frames by George Lucas (2013). The “budget” version is $90 and weighs 21 pounds but it has beautiful shots selected by Lucas from all six films.
6. Star Wars Storyboards: The Prequel Trilogy by J.W. Rinzler & Iain McCaig (2013). Storyboards from Episodes I-III.
7. The Making Of Star Wars: Revenge of the Sith by J.W. Rinzler (2005). A behind-the-scenes look at the evolution and filming of ROTS (though the last chapter was released as an e-book).
8. Mythmaking: Behind The Scenes of Star Wars Episode 2 Attack of the Clones by Jody Duncan (2002).
9. The Making Of Star Wars: Episode I The Phantom Menace by Laurent Bouzereau and Jody Duncan (1999).
10. Star Wars: The New Myth by Michael J. Hanson and Max S. Kay (2000). Only includes up through TPM but a fascinating book nonetheless.