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.
The war against the evil Galactic Empire is in its final stages. The Imperial forces are building another Death Star. Meanwhile, Luke Skywalker saves his friends Han Solo and Princess Leia from the clutches of the crime lord Jabba the Hutt. Without the help of the wise Jedi Master, Yoda, Luke struggles to become a Jedi Knight. Armed with the power of the Force—and backed by Han, Leia, the small but strong Ewoks, and other Rebels—Luke must face Darth Vader and the merciless Emperor in a fight to the death.