MARF FERGUSON DELANO is the author of more than 20 books for National Geographic, includingaGenius, A Photobiograhy ofAlbert Einstein, which was an Orbis Pictus Honor Book, and Inventing the Future- A Photobiography of Thomas AlvaEdison. Her latest titles for National Geographic areaHelen's Eyes, a Photobiography of Annie Sullivan,aMaster George's People,aExplore My World- Butterflies,aExploreaMy World- Frogs,aExplore My World- Baby Animals,aExploreMy World- Clouds, Explore My World- A Tree Grows Up, andaWelcome to the World. Delano is a graduate of Duke University. From the Trade Paperback edition.