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.
Dengar: sly and mercenary. 4-LOM: calculating and precise. Bossk: fierce and unstoppable. All bounty hunters, all deadly, and all after what may be be their greatest prize: a member of the Rebel Alliance and pilot of the Millennium Falcon. But it's not who you think! On the odd planet of Xokhal, the vile Quaffug the Hutt has staged a hunt for his private amusement. With the unscrupulous bounty hunters all vying for the same purse, all rules are thrown out. But Quaffug and his hired rogues may get more than they bargained for from their "helpless" prey.