Peter McMullenPeter McMullen is Professor Emeritus of Mathematics at University College London. He was elected a foreign member of the Austrian Academy of Sciences in 2006, and a fellow of the American Mathematical Society in 2012. He is also a member of the Londo and European Mathematical Societies. He has co-edited several books, has co-authored 'Abstract Regular Polytopes' (Cambridge, 2002) and written 'Geometric Regular Polytopes' (Cambridge, 2020). His work has been discussed in the 'Encyclopaedia Britannica', and he was an invited speaker at the International Congress of Mathematicians in 1974. Read More Read Less