Picture Books:
* "The Most Amazing Thing"
* "The Little Airplane That Couldn't Fly"
* "The Very Best of Friends"
* "The Littlest Angel"
* "The First Christmas"
* "The New Baby"
* "The Great Big Balloon"
Series:
* "The Adventures of Clifford the Big Red Dog" - He has written several titles in this popular series.
* "The Adventures of Captain Awesome"
* "The Adventures of Captain Underpants" - He illustrated the early books in this popular series.
Other Notable Titles:
* "The Night Before Christmas" - He illustrated this classic poem.
* "The Dinosaur Who Lived in My Backyard"
* "The Mystery of the Missing Cookies"
* "The Day the Earth Stood Still"
Quackenbush's books often feature whimsical illustrations and heartwarming stories that appeal to young readers. He has received numerous awards for his work, including the American Library Association's Notable Children's Book Award.