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.
We all know DARTH VADER as THE EMPEROR'S iron fist, but as any rebel can tell you, he's also a terror in a TIE Fighter. What does it feel like in that X-WING cockpit when you're nose-to-nose with the EMPIRE'S deadliest pilot? Will you even live to tell the tale, hotshot?