Alan Lightman is a physicist, educator, and acclaimed author for children and adults. His debut picture book, Ada and the Galaxies, illustrated by Susanna Chapman, was published by MIT Kids Press in 2021. He is also the best-selling author of Einstein's Dreams. Alan Lightman has a PhD in theoretical physics and is a professor of the practice of humanities at MIT. He lives in Massachusetts.

Ramona Kaulitzki is the illustrator of many books for children, including Winter Lullaby by Dianne White and the #1 New York Times bestseller Sisters First by Jenna Bush Hager and Barbara Pierce Bush. When she's not illustrating, she can be found somewhere outdoors or at the riding stable. Ramona Kaulitzki lives in Potsdam, Germany.