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 SOUL OF THE DEATH STAR! The EMPIRE has built the deadliest weapon the galaxy has ever seen. But even the most ruthless Imperial officer might hesitate before unleashing the DEATH STAR's power to kill millions in an instant. Behold the secret story of GRAND MOFF TARKIN, the horrors that honed his resolve and the terrifying steps he takes to ensure that the Death Star lives up to its deadly name!