★"Rex's work is always humorous, smart, and delightfully absurd, and this is no exception. The hand-painted text has beautiful artistry to it, but it’s also a tongue-tangling, deliciously metered, rhyming absurdist story that begs to be read aloud in classrooms, libraries, and homes. . . . [B]rilliantly detailed . . . the child’s expressions are masterpieces in and of themselves . . . Rex is king of the picture books. Consider this required reading."
—Booklist, starred review

★"Conversational rhyme, cascading action, and dramatic page turns create a story of early-morning, get-ready-for-school chaos. Gum-wrapper endpaper illustrations collaged under a bubble gum–pink wash set the tone for escalating silliness . . . [On Account of the Gum is a] gloriously giggly tale glued together by a glob of very gooey gum."
—Kirkus Reviews, starred review

★"[I]n-your-face, and progressively, hilariously, outrageous. There’s an offbeat rhythm to the sometimes-rhyming text that, likewise, keeps listeners guessing. . . . The humor is in the page-turn. . . A rollicking cumulative tale that many listeners will want to choose and re-chew-se."
—Horn Book Magazine, starred review

"Snappy second-person verse enumerates a family’s vain efforts to remove a blob of shocking pink bubblegum as Rex (Unstoppable) dreams up ever-grosser remedies for the hairy dilemma."
–Publishers Weekly

"In Adam Rex's divine picture-book comedy of errors . . . Rex (School's First Day of School; Nothing Rhymes with Orange; Unstoppable), a master of meshuggaas, hastens along the humor with caricaturish illustrations in a fruity palette perfectly suited to the asimmer-with-irritation kid's hair wear, which comes to resemble a Carmen Miranda hat gone berserk. But underneath the silliness, On Account of the Gum harbors a substantive, empowering message. To borrow the book's idiom: There's a point to all of this rat-a-tat rhyme/ It turns out the kid had the cure the whole time."
—Shelf Awareness

"Rex serves a delightful and laugh-out-loud read. . . . The timing is perfect, as the page turn lands the punchline. . . . [On Account of the Gum is a] grand comedy that will engage readers and please Rex’s many fans."
—School Library Journal

"[A]lready giggling audience[s will] burst into belly laughs."
—The Bulletin of the Center for Children's Books