Hardcover Book $20.00 – Perfect bound pages for easy reading – Laminated cover with glossy film – Beautiful full page colour illustrations – Two page colouring book included Add to cart Using a twist on The Golden Rule, The Davy Rule is a picture book for early readers ages 4 – 10. Filled with vibrant drawings and fun language for children, The Davy Rule teaches children about acceptance, kindness and curiosity. Featuring the real life 2-time Guinness World Record holder and 4-time World Champion frisbee catch dog Davy Whippet, The Davy Rule is a fun read and a great resource for parents and teachers.