"With apologies to Eric Carle, this is the best damn sloth-related picture book I have ever read." - School Library Journal
"The brazen over-the-topness leavens the taunting with pure ridiculousness, but there’s still enough bite to make this absolutely hilarious, especially to older sibs." — The Bulletin of the Center for Children's Books starred review
"This is a most joyful and clever whimsy, the kind that lightens the heart and puts a shine on the day. Go ahead, break a few dishes in the washing machine, see the humor and enjoy this fine poke at every science fair that ever was." - Kirkus Review
A Parenting Magazine Best Book of the Year and Bank Street College of Education Best Children's Book of the Year