Trudy Harris writes books that both educate and entertain. She has written a number of successful math concept books, including: Pattern Bugs, 20 Hungry Piggies, Jenny Found a Penny, The Clock Struck One, and Tally Cat Keeps Track. Trudy loves reading picture books to her grandchildren and to her students at Temple View Elementary in Idaho Falls, Idaho. Andrew N. Harris is the illustrator of eight children's books including: 20 Hungry Piggies: A Number Book (2007) and Tally Cat Keeps Track (2010) by Trudy Harris, and the Body Battles (2009) series by Vicki Cobb. In addition to a B.F.A. in illustrating from Art Center College of Design, Andrew has an Associate's Degree from Brigham Young University Idaho. Andrew lives in Rigby, Idaho, with his wife and three children.