Funny story about straight-laced, methodical Steven and his go-lucky offbeat cousin Todd. As you can tell from the title, Steven likes even numbers, while Todd likes odd. What you can't tell from the title is that your children will be laughing their way to understanding of even and odd numbers. We had a library copy of this book that was misplaced, so read only once prior to returning. That was week ago and my 4 and 7 year olds are still bringing this book up. Highly recommended.