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.
In this easy-to-read storybook, Jar Jar Binks is mistaken as a Jedi as he and C-3PO attempt a daring, and quite comical, rescue of Padmé Amidala, who has been captured by the Separatist Alliance.