Announcing a conference celebrating Christos Papadimitriou, September 6-8, 2019, at Columbia University. Registration is free. Confirmed invited speakers include: Sanjeev Arora, Michael Collins, Michael I. Jordan, Anna Karlin, Jon Kleinberg, Elias Koutsoupias, Adi Livnat, Noam Nisan, Prabhakar Raghavan, Scott Shenker, Eva Tardos, John Tsitsiklis, Leslie Valiant, Umesh Vazirani, and Santosh Vempala.
More details here.
Turing's Invisible Hand 