Let's Go, Bike! (Library Binding) (ISBN-13: 9780593434451)

Benjamin Hart is a mostly grown adult who spends his time on a rock, floating through space. He is reminded of this almost daily by his neighbor Frank. He is also a multidisciplinary designer and creative director. He is currently a principal partner and the co-president of Brains on Fire, a creative agency that specializes in building communities and sparking social movements through the power of identity and narrative. Benjamin has worked on numerous projects and campaigns focused on early childhood development and education.

Together the duo are #1 New York Times bestselling authors of The World Needs More Purple People and also helped launch a new company in 2019 called Hello Bello, which provides families with access to premium and more natural baby products at affordable prices.

Daniel Wiseman is a mostly grown adult who spends a lot of his time drawing kids having fun, and animals wearing hats. On the off chance he's not scribbling pictures, you can probably find him stomping through the woods with his not-at-all-grown sons, looking for bears, bugs, and Bigfoot. He is the #1 New York Times bestselling illustrator of The World Needs More Purple People.