David Tong is a professor of theoretical physics at the University of Cambridge, whose research focuses primarily on quantum field theory and its applications to diverse areas, including particle physics, gravity, string theory, cosmology, condensed matter physics and geometry. Awarded the Adams Prize and the Royal Society Wolfson Research Merit Award, Tong is renowned throughout the physics community for his lectures on all the major physics topics. A prolific science communicator who brings physics to life through humour and history, seven million people have watched his Royal Institution Discourse. Everything is Fields is his first popular book.