Prof. David Harel is President of the Israel Academy of Sciences and Humanities, and was Vice President from 2015 to 2021. He is at the Weizmann Institute of Science since 1980, serving in the past as Dean of the Faculty of Mathematics and Computer Science. He works on logic and computability, software and systems engineering, modeling biological systems, odor reproduction, prosody and more. He invented Statecharts and co-invented Live Sequence Charts. His books include “Algorithmics: The Spirit of Computing”, “Computers Ltd.: What They Really Can’t Do” and “Come, Let’s Play: Scenario-Based Programming Using LSCs and the Play-Engine”. His awards include the ACM Karlstrom Outstanding Educator Award, the Israel Prize, the ACM Software System Award, the Eme”t Prize, the IEEE Harlan Mills Award and several honorary degrees. He is a Fellow of ACM, IEEE, AAAS and EATCS, member of Academia Europaea, and international member of US National Academy of Sciences, American Academy of Arts and Sciences, US National Academy of Engineering and the Chinese Academy of Sciences, and is a Fellow of the Royal Society. He is an ardent peace and human rights activist, and his hobbies are photography and music.