This is a great book about Mr. King who gets upset when he sees that a caterpillar ate a leaf. He decides to build a caterpillar catching machine. But he ends up causing more problems. He learns that caterpillars are not bad, and he turns his machine into something positive.
Illustration can make or break a book as far as I am concerned. In this case, I love the illustrations. There is a combination of media used, but I especially love how the animals are outlined in black and filled in (as if a child had drawn them).