PREORDER: The Questioneers: What's That Color?: A Board Book | Andrea Beaty (Author) + David Roberts (Illustrated by) | OUT March 10, 2026

This title will be released on: March 10, 2026

What's That Color? is a fun rhyming Questioneers board book starring Aaron Slater, Illustrator, all about colors from the #1 New York Times bestselling creators of Ada Twist, Scientist and Rosie Revere, Engineer

Aaron has yellow. Rosie has red. Mix them together--it's something new instead!

Aaron Slater, Illustrator and his fellow Questioneers star--as babies!--in their first-ever board book all about the dazzling world of colors. What happens when you mix yellow and blue? What about blue and red? What if you mix all the colors together?

Andrea Beaty and David Roberts--the #1 New York Times bestselling creators of the Questioneers series--are back with a delightfully rhyming and vibrantly illustrated board book, the first in a brand-new concepts series for preschoolers. Readers will join their favorite baby Questioneers as they ask their first questions and explore numbers, shapes, and feelings in future board books.

And discover the newest picture book in the series, Billie Jean Peet, Athlete!