About Pierre Collet-Derby Books by Pierre Collet-Derby One-osaurus, Two-osaurus by (author) Kim Norman illustrated by Pierre Collet-Derby Ages 3 to 7 Grades p to 2 My Big Embarrassing Elephant by (author) Angie Lucas illustrated by Pierre Collet-Derby Ages 5 to 8 Grades k to 3 Barnaby Never Forgets illustrated by Pierre Collet-Derby Ages 5 to 8 Grades k to 3 The Boulder Brothers: Meet Mo and Jo by (author) Sarah Lynn illustrated by Pierre Collet-Derby Ages 5 to 8 Grades k to 3
