Edward M. Reingold Edward M. Reingold is Professor of Computer Science at the Illinois Institute of Technology, where he also served as chair from 2000 to 2006. Prior to that, he was a faculty member in the Department of Computer Science at the University of Illinois, rbana-Champaign for thirty years. His research interests are in theoretical computer science, especially the design and analysis of algorithms and data structures. A Fellow of the Association for Computing Machinery since 1996, Reingold has authored or coauthored more than seventy research papers and ten books; his papers on backtrack search, generation of combinations, weight-balanced binary trees, and drawing of trees and graphs are considered classics. Reingold has won awards for his undergraduate and graduate teaching, and is intensely interested in calendars and their computer implementation. He is the author of Calendrical Tabulations (with Nachum Dershowitz, Cambridge, 2002) and is the author and former maintainer of the calendar/diary part of GNU Emacs. Read More Read Less