"A stellar artistic vision of the infinite power of intergenerational love." --starred, Kirkus Reviews

"Even for adults, this is an enormously complex idea--scientifically, mathematically, philosophically--but Hosford smoothly distills it to a manageable serving that will both engage and challenge kids. Swiatkowska's art, too, is remarkable at this elucidation, illustrating the text literally but with appropriately disorienting and surreal details that combine to whimsical, visually stunning effect." --The Horn Book Magazine

"Swiatkowska's imaginative artwork combines the free-wheeling, slightly eerie absurdity of Monty Python animations, the formality of nineteenth-century decorative patterning, and the playful nerdiness of Leonardo da Vinci-styled inventions. For math and language arts teachers in search of circular common ground, ∞ marks the spot."--The Bulletin of the Center for Children's Books

"This unusual, philosophical picture book makes this seemingly difficult concept approachable and interesting....This quiet jewel is sure to spark contemplation and conversation among readers."

"Hosford's (Big Bouffant) story is as much a look into the interior life of a sensitive girl as it is a meditation on a mathematical concept--a task for which Swiatkowska's (This Baby) idiosyncratic portraits are perfectly suited." --Publishers Weekly

"Swiatkowska's Victorian-style drawings are vaguely reminiscent of Edward Gorey, and Hosford effectively reflects the ways in which young children might grapple with, and come to some understanding of, such an impenetrable notion." --The New York Times Book Review