“Adler always finds a canny way into the math game, both practical and enjoyable.”—Kirkus Reviews
“Adler lays out the four laws of supply and demand in a logical, methodical way, while Miller brightens the page with vibrant, stylized digital illustrations. . . . useful and interesting.”—Booklist
“Presented in a clear and straightforward manner . . . Miller’s cheery, cartoonlike illustrations add to the upbeat, conversational tone.”—School Library Journal