Chapter 6: Conflict and Combat. If you want to know how combat works, this is the chapter for you.

Chapter 7: Starships and Vehicles. What's Star Wars without vehicles? This is very much like the Gear chapter, except with stats for loads of space and aircraft.

Chapter 8: The Force. Although you can't exactly be a Jedi, this chapter allows you to become a "Force-sensitive Exile," which is an untrained force-user (much like Luke early in Empire Strikes Back). It adds a few more talent trees and lots of helpful information.

Chapter 9: The Game Master. Perhaps one of the most helpful resources for veteran or beginner GMs I've ever seen in a game. I recommend that anyone, even those who don't intend to play this game, read this chapter.

Chapter 10: The Galaxy. This is the longest chapter in the book, easily twice the size of the next largest. Here's where all of the Star Wars expanded universe stuff comes in. It's really quite amazing. Personally I've always perceived the EU kind of like fan fiction. The way it's presented here makes it seem completely official. After reading this chapter, I felt much more comfortable running games in this vast universe (and I now have a healthy respect of the EU).

Chapter 11: Law and Society. If the Galaxy chapter was about planets, this is much more granular. It covers what the Empire is doing at this time in the SW lore, what gangs are in power and what kind of factions the players can expect to run into during a game. Just compiling this information must've taken forever, but the book is much better because of it.

Chapter 12: Adversaries. In other RPG books this would be called the Bestiary. In Star Wars, most of the enemies aren't beasts. It details stats on just about everything your players will ever need to kill. There are also rules on how to "upgrade" an enemy to keep pace with the players. Very useful stuff.

Chapter 13: Trouble Brewing. An included adventure. I don't like running premade adventures very much, but there are many ideas here that can be used for homemade stories.