“Mayer's vibrant, computer-generated illustrations, replete with gigantic otherworldly grins and mortal eyes stretched tall with fear, will appeal to fans of afternoon cartoons. Outlandish shadows convey the cautionary nature of the tale, while amusing details keep the mood perpetually fun. Narrated in humorous verse, this 'tale of mathematical mayhem' will provide an entertaining addition to math classes and a useful warm-up to tutoring sessions with less-than-enthusiastic students.” ―School Library Journal

“...an amusing story that begs to be read aloud...” ―Curriculum Resource Center

“Bill Mayer's bright, wacky gouache illustrations are every bit as much fun as the story.” ―Courier-Times

“The artwork in this book is masterful and the poetry enjoyable.” ―Book Review Digest

“...A wonderful book that makes math fun! My girls really got a kick out of this fun book! Got a child that is struggling in math, likes math or just loves monsters then grab this book.” ―Letters, Numbers and Books blog

“...Not only does the story teach children about the fun that can be had with math, but it also teaches them the importance of choices they make...It's a story that our family will be reading for years to come, not only because we love the illustrations and math but also because of the principles it teaches.” ―There's a Book blog