I got a e-book on QFT few months ago.but this one hasn't chapter 1 and title and index etc.i.e all the informations about author.but this book is really good,I want to see the full version,it's recommed to anyone who interests in QFT.It's style is a little mathematical but keep good physical insights also.And contains many interesting materials.What is most important ,this book develops qft step by step,not 'a pathintegral and some feynman rules directly',and keep a balance to not to be too 'general' and 'axiomic',mainly treats easy and meaningful materials.It's suitable for a beginner. the content of this book is below chapters 1???missed 2 Classical field theory 3 Symmetries 4 Quantum fields 5 Free field theory 6 Gauge field theories 7 Supersymmetry 8 Path integral quantization 9 Pertubation theory 10 Quantum fields in external sources 11 Properties of the scattering matirx 12 The structure of feynman diagrams 13 Quantum electrodynamics 14 Ultrviolet divergences and renormalization 15 Renormalization to all orders 16 The renormalization group 17 The effective action 18 Symmetry breaking 19 Dynamical symmetry breaking ??? I'm not sure whether there are chapter 20 or 21... Does anynoe know this book?