Ben Ramalingam is an internationally known development thought leader working on issues of complexity and systems thinking. A consultant for the Overseas Development Institute (ODI), Ben has been instrumental in helping DFID in their recent redesign of their approach to development programming, and has helped USAID in the past in complexity-driven monitoring and evaluation, as well as learning and knowledge management. Ben was deputy director of the Humanitarian Futures Programme at Kings College and led the knowledge and learning programme at ODI. Prior to joining the development sector, he worked in strategy consulting and investment banking. Ben currently holds honorary positions at the London School of Economics, and the Overseas Development Institute, and the Institute of Development Studies.