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 elementary students in Idaho Falls, Idaho.
Cecilia Rébora studied Illustration at the Jopes Serra I Abella school of arts aplicades in Barcelona, Spain. She worked for the interactive children's museum of Guadalajara for a year, and since 2001 she has been working as a freelance children's illustrator. Cecilia has published approximately 30 books in Mexico, Brazil, Colombia, Korea, and United States. She divides her time doing the two things she loves most in life—playing with her two babies, Mateo and Ines, and illustrating children's books!