Quantum Field Theory IMichael LukePDF  193 Pages  EnglishThis book covers the following topics:
Constructing Quantum Field Theory, symmetries and Conservation Laws,
nonRelativistic Quantum Mechanics, Interacting Fields, Perturbation Theory for
nonrelativistic quantum mechanics, Decay Widths, Cross Sections and Phase Space,
Quantizing the Dirac Lagrangian, vector Fields and Quantum Electrodynamics.


Relativistic Quantum Field Theory Lecture Notes IProf. Alan GuthOnline  NA Pages  Englishhis notes
contains the details about Quantization of the Free Scalar Field, EulerMaclaurin
Summation Formula, Distributions and the Fourier Transform, Dirac Delta Function
as a Distribution, Quantum Mechanics and Path Integrals, Green's Functions and
Generating Functions, Quantization of the Free Scalar Field , particle
Production by a Classical Source, The Dirac Field, Discrete Symmetries of the
Dirac Field , Interacting Field Theories .

Relativistic Quantum Field Theory Lecture Notes IIProf.
Hong LiuOnline  NA Pages  EnglishThis note covers the following topics: Nonabelian gauge theories,
Field and Mass renormalizations, removing ultraviolet divergences , unstable
particles and resonances , Smatrix elements and LSZ reduction, Renormalized
Lagrangian, Vertex function , anomalous magnetic moment , vacuum polarization,
general renormalization theory, renormalization group.

Lectures on Quantum Field TheoryDavid Tong, Cambridge universityOnline  NA Pages  EnglishThese
lecture notes are based on an introductory course on quantum field theory, aimed
at Part III (i.e. masters level) students. The full set of lecture notes can be
downloaded here, together with videos of the course when it was repeated at the
Perimeter Institute. Individual sections can be downloaded on the link below.
Classical Field Theory, Canonical Quantization, Interacting Fields, The Dirac
Equation, Quantizing the Dirac Field and Quantum Electrodynamics. This note is
Last updated on October 2012.The lecture notes can be downloaded in both PDF and
PS formats

Quantum Field Theory [PDF 78p] 
Quantum Field Theory (PDF 616p)Mark SrednickiPDF  616 Pages  EnglishThis book covers the following
topics: Classical scalar field theory, Nonlinear (interacting) theory,
Dimensional analysis and scaling, Complex scalar field theory, Quantum
scalar field theory, Renormalization and Partition function.

Quantum Field Theory (PDF 155p)Dr
David TongPDF  155 Pages  EnglishThis book provides a very clear and well written introduction to
Quantum Field Theory. Topics covered includes: Classical Field Theory, Free
Fields, Interacting Fields, The Dirac Equation, Quantizing the Dirac Field
and Quantum Electrodynamics.

Field Theory [ PDF 115p] 
Quantum Field Theory program 
Notes of Quantum Field Theory II 
QUANTUM FIELD THEORY [PDF 107p] 
Quantum Field Theory [PDF 212p] 
Advanced Quantum Field Theory [PDF 267p] 
QUANTUM FIELD THEORY [PDF 48p] 
Quantum Field Theory Program Notes 
Relativistic Quantum Field Theory 
An Introduction to QED and QCD[PDF] 
QCD and collider Physics 
QCD and collider physics II 
QCD and collider physics III 
QCD and collider Physics IV 
Quantum Chromodynamics 
Introductory QED and QCD 
An Introduction to Quantum Field Theory [PDF] 
Lecture Notes in Quantum Field theory (PDF 142P) 
Relativistic Quantum Fields (PDF) 
Fields [W. Siege PDF 885p] 
Introductory Lectures on Quantum Field Theory [PDF 96p] 
Undergraduate Lecture Notes in Topological Quantum Field Theory [PDF 63p] 
Computational Methods in Quantum Field Theory [PDF 50p] 