susan weinberg, where should we start? >> hi, peter, thank you. it's always so great to see you at bookexpo. and we can start with a book that is just coming out now called the philanthropy of george soros: building open societies. this is a book about george soros' work. he has given away billions and billions of dollars through his open society foundation which is based on his principles and putting his philosophy to work in the real world. it coffers his -- it covers his programs from around the world, and it includes an essay from george where he lays out his principles and what animates his giving. it's really turned out to be his major business at this part of his life. >> right next to that, susan, is "poor economics." >> "poor economics" is one of the most exciting big idea book we've had in a while. the authors are the founders of the mit poverty lab, and they have really pioneered the idea of let's do some on the ground work, experiments, observations to learn what really works in development, where we should put our effort, where we sho