Rapporteurs are charged with the important task of objectively recording the proceedings and groundbreaking presentations at IAS 2019. Throughout the conference, an international team of rapporteurs will report on key conference highlights across all tracks and community activities. All summaries will be published on this page during the course of the week. A rapporteur session will be held immediately before the closing session on Wednesday, 24 July 2019. This session synthesizes the presentations made during the week, focusing on critical issues addressed, important results presented and key recommendations put forward.