| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Busy Barnyard | 978-1-58246-168-7 | 2006 | |
| Busy Bear Cubs | 978-1-58246-302-5 | 2009 | |
| Busy Birdies | 978-1-58246-317-9 | 2010 | |
| Busy Bunnies | 978-1-58246-242-4 | 2008 | |
| Busy Chickens | 978-1-58246-275-2 | 2009 | |
| Busy Doggies!: A Busy Animals Book | 978-1-58246-090-1 | 2003 | |
| Busy Elephants | 978-1-58246-383-4 | 2011 | |
| Busy Gorillas | 978-1-58246-352-0 | 2010 | |
| Busy Horsies | 978-1-58246-223-3 | 2007 | |
| Busy Kitties | 978-1-58246-130-4 | 2004 | Sean Franzen |
| Busy Monkeys | 978-1-58246-082-6 | 2002 | |
| Busy Pandas | 978-1-58246-259-2 | 2008 | |
| Busy Penguins | 978-1-58246-016-1 | 2000 | |
| Busy Piggies | 978-1-58246-169-4 | 2006 | |
| The Babies and Doggies Book | 978-0-544-44477-5 | 2015 | Molly Woodward |
| What Did They See? | 978-0-8050-6167-3 | 2003 | |
HOUGHTON MIFFLIN HARCOURT · Henry Holt and Company · Tricycle Press