“By the amicable ending, readers have discovered the basics of fair play: abiding by the rules, waiting your turn, respecting your competitors, winning (and losing!) gracefully, and, per the titular mandate, abstaining from conspicuous consumption. This book requires two or more readers—the more participants, the merrier.” —Kirkus Reviews
“Ultimately, this is a cleverly zany take on how difficult forming friendships can be.” —Booklist
“Though the monsters are rowdy, they look ready to cuddle. . . . Viewers are sure to wish they could stampede around with their own monster friends.” —The Bulletin