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.
Star Wars Adventures in Colors and Shapes is a read-along book in the Star Wars Discovery Series. The story involves the Rebel Alliance droids C-3PO and R2-D2 searching for a Fulstar plate of the correct color and shape to help Han Solo complete repairs on the Millennium Falcon. The book was published by Buena Vista Records in 1984, and released in both 33 1⁄3 RPM and cassette tape formats, with narration provided by Anthony Daniels.
C-3PO and R2-D2 try to help Han Solo and Chewbacca repair the Millennium Falcon for a Rebel supply run by finding a replacement Fulstar plate, but Threepio keeps getting plates in the wrong color and shape.