Kevin S. Hile is a California-based author and editor who has written books on a wide range of subjects. His authored titles include Animal Rights, The Trial of Juveniles as Adults, Dams and Levees, Cesar Chavez, Centaurs, ESP, and Little Zoo by the Red Cedar: The Story of Potter Park Zoo. As an editor, he has worked with Visible Ink on a variety of science-related books, including The Handy Anatomy Answer Book, The Handy Astronomy Answer Book, The Handy Geology Answer Book, and The Handy Math Answer Book.