Patrick O'Donnell is a writer and children's book author who lives in Boyertown, Pennsylvania, with his two sons.

Erik Mehlen is an illustrator who has received awards from the Society of Illustrators. He lives in San Antonio, Texas.

'A good way to learn words that at a young age will be unfamiliar but interesting' - Healthy Books, 2018

This adorable sing-song project has just enough dinosaurs to make it fun and just enough dentistry to calm a worried young mind. With this bright, lighthearted, and fast-paced book, O'Donnell and Mehlen accomplish exactly what they set out to do: create a connection that softens the stress of a first dentist visit. Plus, they get extra points for taking the time to add a comprehensive educational list/overview of the dinosaurs mentioned and the dentistry terms touched upon. (Ages 5-8) -- Midwest Book Review, Children's Bookwatch