This is on the whole a very good book for those who want to know the development of particle physics and also how to use Feynman diagrams to calculate particle decay rates and scattering cross sections. The explanation of how to calculate color factors in Quantum Chromodynamics is probably one of the clearest in any text book. Anyone who works through this book will have a good knowledge of how to calculate Feynman diagrams for any given Lagrangian (even one you might think of yourself :) ).<br><br>However the Feynman rules are just handed down from 'heaven' as it were and no attempt is made to show where they come from. This is surprising as there are quite simple derivations using Fermi's Golden Rule which are available and that avoid the complications of quantum Field theory. Such derivations are included in books such as Halzen and Martin and Mark Thomson.<br><br>For this reason I can only give the book 4 stars