An innovative new series of children’s tree characters, “The Treebillies”, is today being launched exclusively at Green Rewards. The brain-child of the illustrator Terry Carter and the environmentalist Graham Simmonds (Graham is founder and managing director at Green Rewards as well as chairing the environmental charity Trees for Cities); the first two books in the series, Oscar the Oak and Wendy the Willow, have been published by Treehouse Publishing and are exclusively available in the online eco store on the Green Rewards Green Shop.