Renée Kurilla has illustrated several books for children including Chicks Rule! and Chicks Rock! by Sudipta Bardhan-Quallen, Right This Very Minute by Lisl H. Detlefsen, the My Pet Slime series by Courtney Sheinmel, and the Ada Lace series by Emily Calandrelli. She both wrote and illustrated One Springy, Singy Day and The Flower Garden. Kurilla lives in the woods just south of Boston with her illustrator husband, Keith Zoo, and their daughter, Zoey. One Upside-Downy Day was inspired by growy, throwy, showy Zoey and is a love letter to every kiddo who shows grit and resilience while making it through to the other side of a tough day. Kurilla can otherwise be found with her nose in a book, drawing, or attempting an ill-fated headstand.

From Renée Kurilla, author and illustrator of One Springy, Singy Day, comes an exploration of the not-so-great days of toddlerdom and the ways little ones can self-soothe to ease those upside-downy days awaySluggish, Weepy,Eyes still looking sleepy;You were in no mood to playwhen you got out of bed today. Follow a diverse cast of young children as they experience big feelings‿anger, shyness, and sadness‿in this patient, rhyming picture book. One Upside-Downy Day is a love letter to emotional understanding and the sometimes-gray days of being a toddler.