Douglas B WestDouglas B. West is Professor of Mathematics at Zhejiang Normal University and Professor Emeritus at the University of Illinois, where he won a campus-wide teaching award in 2002. Professor West has written more than 250 research articles on diverse tpics in combinatorics and has advised 38 doctoral students. His earlier books include Introduction to Graph Theory (2001), a popular textbook adopted around the world for courses. He is Editor-in-Chief of Discrete Mathematics (since 2007) and Associate Editor of the American Mathematical Monthly (editing solutions for the Problems section since 1986). He also maintains web pages at https: //faculty.math.illinois.edu/ west/ giving links to conferences in discrete mathematics and advice on writing mathematics. Read More Read Less