Patricia Barnes-Svarney is a science and science-fiction writer. Over the past few decades, she has written or coauthored more than 35 books, including Visible Ink Press’ The Handy Biology Answer Book, The Handy Math Answer Book, and The Handy Ocean Answer Book. She is the author of When the Earth Moves: Rogue Earthquakes, Tremors, and Aftershocks, and she was also the editor/author of the award-winning New York Public Library Science Desk Reference. Thomas E. Svarney is a scientist who has written extensively about the natural world. His books, with Patricia Barnes-Svarney, include Visible Ink Press’ The Handy Biology Answer Book, The Handy Math Answer Book, and The Handy Ocean Answer Book, and he is also the author of Skies of Fury: Weather Weirdness around the World and The Oryx Guide to Natural History.