David Schmeidler, who served as President of the Society from 2014 to 2016, passed away on March 17th, 2022. In addition to his service to the Society, David was an important contributor to the advancement of the field. A two part summary of these contributions can be found here. Part I, written by Eric Maskin, Herve Moulin, Andrew Postlewaite and Tamas Solimosy covers David’s contributions to Mathematical Economics and Game Theory. Part II, authored by Edi Karni, Fabio Maccheroni and Massimo Marinacci discusses David contributions to Decision Theory. A testament by M. Ali Khan to David the man as well as one by Mark Machina to David the decision theorist can be found here. A personal tribute by Peter Wakker is here.