Siobhan Roberts

A mathematician unlike any other, John Horton Conway (1937-2020) possessed a rock star's charisma, a polymath's promiscuous curiosity, and a sly sense of humour. Conway found fame as a barefoot professor at Cambridge, where he discovered the Conway groups in mathematical symmetry and the aptly named surreal numbers. He also invented the cult classic Game of Life, a cellular automaton...

Driven by a profound love of shapes and symmetries, Donald Coxeter (1907-2003) preserved the tradition of classical geometry when it was under attack by influential mathematicians who promoted a more algebraic and austere approach. His essential contributions include the famed Coxeter groups and Coxeter diagrams, tools developed through his deep understanding of mathematical symmetry. The Man Who Saved Geometry tells...