Fractions and distance measurements mark the progress of Henry Hare and Tess Tortoise as they race each other one mile up a hill.

Cathy Morrison may have started her art career in animation but she soon fell in love with illustrating children's books and has been doing so for 20 years. Cathy has illustrated Daisylocks, Nature Recycles: How About You?, Three Little Beavers, Animalogy: Animal Analogies, Dino Tracks, and Dino Treasures for Arbordale. Other titles Cathy has illustrated include Ignacio's Chair, and the Young Patriots Series including Alexander Hamilton, Young Statesman; Frederick Douglass, Young Defender of Human Rights; and Juliette Low, Girl Scout Founder. Cathy works from her home overlooking a beautiful view of the Mummy Range, on the northern side of Rocky Mountain National Park. Check out Cathy's blog: www.cathymorrison.blogspot.com