THREE FRIENDS OF NATURE Each volume in this book series actually contains three books in one: a picture story, a coloring book and an ecology lesson. A bonus is added to all of this: on the last cover you will find a small drawing or coloring lesson. This is a story of the adventures of three friends - Leafessor (a wise leaf), Joker (a strange bluish and curious rodent) and Vivi (a loving squirrel always in love mostly with small animals or with cute insects). The three will go on a journey where Leafessor will try to explain to the other two friends what ecology is and what problems nature is currently facing - pollution, waste, excessive cutting of forests, climate change and more.