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.
Jabba the Hutt lives to negotiate, and the art of the deal is his only discipline. But the goods he trades are the lives of others, and in that line of business you can't lose your head. These stories hold a valuable lesson: In a deal with the devil, you can always refuse. In a deal with Jabba, it's not advised. Follow his adventures into the seediest corners of the galaxy as he encounters vile gangsters, hungry princesses, and back-stabbing opportunists. You've seen how Jabba handles negotiations—but how will he handle betrayal?