David Haskell used a tiny patch of woodland as a window into the ecology and evolution of North American forests. For a year, he watched one square meter of old growth forest in the mountains of Tennessee, then wrote a book - The Forest Unseen (Viking, 2012) - telling the stories of the creatures that he encountered. During his talk he will offer scientific insights into the workings of forests and share his personal reflections on the experience of repeatedly and closely observing one small natural area. A book signing will follow.