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.
Meet Rey, the brave young heroine from the latest installment of the Star Wars™ saga: The Force Awakens™, in DK Readers L2: Star Wars: Rey to the Rescue! Takes a close look at Rey's home planet of Jakku, her fighting and piloting skills, her friends Finn and BB-8, and her evil enemy Kylo Ren in this new reader from DK.