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.
After transporting rude aliens and unusual plants for Jabba Desilijic Tiure the Hutt, Han and Chewbacca are in the mood for an easy job. But after Jabba sends them to the mining planet Shinbone for delivery and pick up, Han and Chewie learn that working for Jabba is never easy.