The magic school bus gets planted : a book about photosynthesis / [TV tie-in adaptation by Lenore Notkin and illustrated by Bob Ostrom ; TV script written by Ronnie Krauss].

The magic school bus blows it's top : a book about volcanoes / [TV tie-in book adaption by Gail Herman and illustrated by Bob Ostrom ; TV script written by Brian Meehl and Jocelyn Stevenson].

L'autobus magique chauve qui peut! : un livre sur les chauves-souris / [from an episode of the animated TV series produced by Scholastic Productions, Inc. ; TV tie-in adaptation by Nancy E. Krulik and illustrated by Bob Ostrom ; french text by Lucie Duchesne.]

Rock-and-roll Bob.

Bob the builder : Muck's map.