Béla Bollobás has been a Fellow at Trinity College, Cambridge, for over fifty years, for decades as a Director of Studies in Mathematics, teaching the very best undergraduates in England, and is the Chair of Excellence in Combinatorics at the University of Memphis. He has had over seventy Ph.D. students. He is a Fellow of the Royal Society and a Member of the Academia Europaea, and a Foreign Member of the Hungarian Academy of Sciences and of the Polish Academy of Sciences. Among the awards he has received are a Senior Whitehead Prize (2007), a Bocskai Prize (2016), a Széchenyi Prize (2017) and an Honorary Doctorate from Adam Mickiewicz University, Poznań. This is his thirteenth book.
