Square Pears “The FUN of RHYME” is the first coloring book authored and illustrated by Kenn Vidro. It was published in September of 2005 by Gilbert Square Books. This edition is full of riddles to color. It is a collection of previously published Square Pears from Kenn’s first three books as well as new riddles sprinkled throughout. It’s perfect for the early childhood kiddos in that the answers already appear below each picture.