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.
STAR WARS: THE COMPLETE SAGA is the ultimate guide to all six films. Readers can relive each film step by step in one amazing book. From Qui-Gon's discovery of Anakin on Tatooine to Anakin's fall to the dark side and Luke's battle to save his father - THE COMLETE SAGA is a must-have for all STAR WARS fans.