C-3PO's Big Adventure was a children's storybook published by Scholastic in August 2000 as part of the Star Wars Junior book series.

A droid made out of spare parts can sometimes be a very helpful friend. Anakin built C-3PO to help with housework, but C-3PO knows he can do much more! C-3PO has a chance to help Anakin win a race that would change the boy's life. Can C-3PO prove how important he is?