P. J. Hoover holds undergraduate degrees in both computer engineering and history, and a master's degree in electrical engineering. She worked for 15 years as an engineer, designing computer chips for Motorola and Intel. She is now the author of over 30 books for kids, teens, and adults. In addition to her own books, Hoover actively writes social studies and science curriculum articles for various educational publishers. She lives in Austin, Texas. More information is available on her website: pjhoover.com.