Sodor Mobile Library is a portable library van. It has a bookshelf inside it with many books.
Sodor Mobile Library once fell into a ditch, though Harvey managed to pull it out. However, it broke down and could not go anywhere. The driver told Elizabeth who passed by and told her what happened. She helped out by towing it down the street and the driver gave Elizabeth a special thanks by reading her stories.
Sodor Mobile Library is painted sky blue with a yellow middle section. Its name is painted on its sides in red.