I saw a post in the TOS section about where the engine room in the original Enterprise and I immediately thought of a book I have in my collection. It is a look at the refit of the Enterprise. Every little detail you want to know is in here. Every deck is looked at and rooms are drawn and labeled. It also included other fun information such as what symbols are used to signify what, rankings, shuttlecrafts, phasers etc. I personally love cutaways and learning where the captains closet is, haha. I would say it is invaluable if you want to do an accurate cutaway version of the refit (as I do) and full of fun stuff for the average fan.