Oxford Reading Tree Stage 13 Treetops NonFiction Teaching Notes Author:Manda George, Mick Gowar, Sarah Fleming, Claire Llewellyn, Fiona MacDonald TreeTops Non-Fiction are part of a structured reading programme for juniors from Oxford Reading Tree, Stages 9-16. The high-interest subject matter they cover will motivate all children to read - especially boys. They are ideal for guided reading. The book packs are available in mixed packs of six books or class packs of 36 books.