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.
WHO IS DARTH VADER? He has been many things: a SITH warrior, a commander, a destroyer. DARTH VADER is to many throughout the GALACTIC EMPIRE a symbol of fear and mysterious, otherworldly power. But there are some who have seen the DARK LORD in a different light. There are some corners of the galaxy so dark and desperate that even Vader can be a knight in shining armor.