I Just finished this sketch. The book is a history of social movements and social change in Canada from 1937-82. The publisher wanted a conceptual approach and I thought that a windswept tree would be an original way of expressing revolution and change. I have an entire collection of books I have done about Canada and each time I start a new one I always try to find an original way to use our national symbols. The tree used in this case is in fact a maple tree.