BBY/ABY is used to position items along the Star Wars Timeline. BBY refers to Before the Battle of Yavin. ABY refers to After the Battle of Yavin. The Battle of Yavin in Episode IV: A New Hope occured in 0 BBY/ABY.
The Youtini Expanded Universe Ranking system is a 1-5 scale that ranks EU book quality, difficulty, and importance. Books closer to Level 1 are easier to read and understand, more important, and of higher quality.
Rev up your engines—it's time for the Rogue Squadron to fly again! Join Luke Skywalker, Wedge Antilles, and the rest of the Rogues on a mission that will define them as heroes not just of the Rebellion, but as heroes for the whole galaxy!