Teresa Robeson has been an amateur astronomer since 1980, with a special interest in cosmology. She is the 2020 APALA Picture Book Award-winning author of
Queen of Physics: How Wu Chien Shiung Helped Unlock the Secrets of the Atom and
Two Bicycles in Beijing. She lives in southern Indiana.
Diana Ren?ina studied design and worked at several creative agencies before becoming a full-time illustrator and digital designer. She lives in Riga, Latvia, a city of cobbled streets, pine forest, Art Nouveau architecture, and the cold sea.