* "Brilliant.... A playful, funny, and friendly treatment of anxiety and life's unpredictable messes."--Kirkus Reviews, starred review
* "Louie's exaggerated reactions...will trigger laughs with every page turn....McDonnell... excels at reminding his characters--and readers--that it's possible to keep it together even when life has jelly all over it."--Publishers Weekly, starred review
"The pleasures of watching a book depart from its conventions and address its sticky-fingered reader will tickle even the littlest postmodernist."--New York Times Book Review
"Classic McDonnell pen, ink, and watercolor pastels blend with mixed-media and crayon messes to make this untidy tale a victory for unkempt books everywhere. Keep calm, and read on!"--School Library Journal
"This [one] is a fun one-Kiddos who get messy with their books will likely giggle."--Booklist