- "Porcupines: The Animal Answer Guide" (2000)
- "Bears: The Animal Answer Guide" (2000)
- "Owls: The Animal Answer Guide" (2001)
- "Baboons: The Animal Answer Guide" (2001)
- "Whales: The Animal Answer Guide" (2002)
- "Alligators: The Animal Answer Guide" (2002)
- "Elephants: The Animal Answer Guide" (2003)
- "Raccoons: The Animal Answer Guide" (2003)
- "Kangaroos: The Animal Answer Guide" (2004)
- "Koalas: The Animal Answer Guide" (2004)
- "Butterflies: The Animal Answer Guide" (2005)
- "Turtles: The Animal Answer Guide" (2005)
- "Honeybees: The Animal Answer Guide" (2006)
- "Lobsters: The Animal Answer Guide" (2006)
- "Woodpeckers: The Animal Answer Guide" (2007)
- "Bats: The Animal Answer Guide" (2007)
- "Eagles: The Animal Answer Guide" (2008)
- "Seals: The Animal Answer Guide" (2008)
- "Gorillas: The Animal Answer Guide" (2009)
- "Scorpions: The Animal Answer Guide" (2009)
- "Beavers: The Animal Answer Guide" (2010)
- "Centipedes: The Animal Answer Guide" (2010)
- "Frogs: The Animal Answer Guide" (2011)
- "Snails: The Animal Answer Guide" (2011)
- "Sharks: The Animal Answer Guide" (2012)
- "Salamanders: The Animal Answer Guide" (2012)
- "Armadillos: The Animal Answer Guide" (2013)
- "Squirrels: The Animal Answer Guide" (2013)
- "Spiders: The Animal Answer Guide" (2014)
- "Grasshoppers: The Animal Answer Guide" (2014)
- "Wolves: The Animal Answer Guide" (2015)
- "Manatees: The Animal Answer Guide" (2015)
- "Platypuses: The Animal Answer Guide" (2016)
- "Jellyfish: The Animal Answer Guide" (2016)
- "Octopi: The Animal Answer Guide" (2017)
- "Komodo Dragons: The Animal Answer Guide" (2017)
- "Giraffes: The Animal Answer Guide" (2018)
- "Tigers: The Animal Answer Guide" (2018)
- "Chameleons: The Animal Answer Guide" (2019)
- "Pangolins: The Animal Answer Guide" (2019)
- "Quokkas: The Animal Answer Guide" (2020)
- "Capybaras: The Animal Answer Guide" (2020)
- "Narwhals: The Animal Answer Guide" (2021)
- "Axolotls: The Animal Answer Guide" (2021)
- "Fennec Foxes: The Animal Answer Guide" (2022)
- "Red Pandas: The Animal Answer Guide" (2022)
Magazines and Journals
- "National Geographic Kids"
- "Ranger Rick"
- "Highlights for Children"
- "Ask"
- "Muse"
- "Cricket"
- "Spider"
- "Faces"