Quantum Field Theory, as Simply as Possible - A. Zee

A. Zee is professor of physics at the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara. His many books include Fly by Night Physics , On Gravity , Group Theory in a Nutshell for Physicists , Einstein Gravity in a Nutshell , Quantum Field Theory in a Nutshell , and Fearful Symmetry (all Princeton).