Mercer Mayer began writing and illustrating children's books in 1966, and since that time, he has published over 300 titles. Open almost any of the award-winning author/illustrator's books, and out may pop dragons, cuddly monsters, wonderful creatures, and endearing critters. "Most of my books are about things that happened to me when I was a little kid," says Mercer. "Now that I'm a big kid, I write about things that happen now, especially with my children. They ...