David Cole is a writer and a math teacher. He has been interested in math since he was a very young boy. After pursuing degrees in math and computer science, he shared this love of math at many levels, teaching at the college level but also coaching elementary math teams and running a summer math camp for a number of years. He has also always loved to write, and has written a number of plays which have been performed. He has always wanted to combine my love of math and writing, and The Math Kids series was born as a great way to exercise both sides of his brain at the same time.

Shannon O'Toole is a Toronto based illustrator, painter and elementary school teacher. Her playful illustration work is inspired by the unique and humorous characters in her life. Aside from illustrating books for children, Shannon has exhibited her artwork in galleries across Ontario. When she is not drawing, Shannon can be found curled up with her dog, Edgar watching old movies. You can visit her online at www.shannonotooleart.com or follow her on Instagram @shannonotooleart