Michael Quinn Patton is a hero of mine. In the early 2000's I read a book called 'Getting to Maybe: how the world is changed'. Patton was one of three authors. If you are interested in learning from successful social innovation initiatives from around the world, this book is an eye-opener.
He has been developing his approach to dealing with complex human systems since way back in the 70's and 80's - and this has led him to current thinking about evaluation. I find the approach is very useful. It can provide a framework not only for evaluation but also for how you proceed with your work, how you decide what needs to happen next.
