A veterinarian for 25 years and operator of Indianapolis's Broad Ripple Animal Clinic for 22 years, Dr. David Brunner specializes in treating small animals--cats and dogs. His first book was The Dog Owner's Manual . He has two daughters, Molly and Kendell, two black Labrador retrievers, Lucy and Noel, and a wonderful cat named Mouse. Sam Stall is the coauthor of The Dog Owner's Manual and The Encyclopedia of Guilty Pleasures . He resides in Indianapolis with his cat (and former animal-shelter inmate), Ted, plus three terrier mixed-breed dogs and his wife, Jami. Paul Kepple and Jude Buffum are better known as the Philadelphia-based studio Headcase Design. Their work has been featured in many design and illustration publications, such as American Illustration, Communication Arts, and Print.

Paul worked at Running Press Book Publishers for several years before opening Headcase in 1998. Both graduated from the Tyler School of Art, where they now teach.