Collection of high quality video lectures and notes, on theoretical physics. (Last revised: March, 2018)
The following is mostly a collection of high quality video lectures, and accompanying notes, on theoretical physics. All of the resources are freely available on the Web. Every resource has been reviewed, and should allow you to make "quick" progress in fundamental physics. It should be possible to more or less work your way downwards through the list of material. You should find additional articles very helpful in developing your understanding.
If you have successfully completed an undergraduate course in mathematics / physics you could definitely work your way through the material on this website in just a few years!
If you know of any resources that you can personally recommend, please send me a message in the comments below.
Classical Mechanics & Special Relativity
Classical Mechanics, Jacob Linder
Special Relativity, Leonard Susskind
The Feynman Lectures on Physics Volume I & II
Quantum Mechanics, Professor J.J. Binney | Notes
Mastering Quantum Mechanics, Barton Zwiebach ,  & 
Quantum Mechanics II, Prof. Dr. Namık Kemal PAK
The Feynman Lectures on Physics Volume III
Physical Mathematics (15), Kevin Cahill | Physical Mathematics (16), Kevin Cahill | Physical Mathematics (17), Kevin Cahill
Laplace Transforms, Gilbert Strang
Advanced Mathematical Methods for Engineering and Science Students, G. Stephenson, P. M. Radmore
Quantum Field Theory
Lectures On Quantum Field Theory, Ashok Das | Field Theory - A Path Integral Approach Ashok Das (Many thanks to Ashok Das).
Quantum Field Theory, David Tong | Notes
Quantum Field Theory, Tobias Osborne
Quantum Field Theory (Fall 2012), Kevin Cahill
Introduction to Quantum Field Theory, Matthew Schwartz. This book was previously available for download on the harvard.edu website.
If you would like to purchase a book: I can also highly recommend Field Quantization by Walter Greiner et al.
The following book along with solutions may be helpful for reference: Quantum Field Theory, Mark Srednicki. This book was previously available for download on the ucsb.edu website.
Dear Dr. B: How come we never hear of a force that the Higgs boson carries?, Sabine Hossenfelder
You Should Love (or at least respect) the Schrödinger Equation, Sean M. Carroll
Advanced Quantum Field Theory
Advanced quantum field theory: the theory of elementary interactions, Tobias Osborne
The Standard Model, Paul Langacker
QCD Made Simple, Frank Wilczek
General Relativity & Cosmology
General Relativity, Neil Turok
A First Course in General Relativity, B. Schutz
Lecture Notes on General Relativity, Sean M. Carroll
The large scale structure of space-time, S. W. Hawking & G.F.R Ellis
Explorations in Particle Theory, Ben Allanach | Notes
Supersymmetry, Fernando Quevedo | Notes
Supersymmetry and Gauge Theory, Neil Lambert
Supersymmetry, David Shih
String Theory, Barton Zwiebach
Lectures on String Theory, David Tong
An Introduction to String Theory, Kevin Wray
Introduction to String Theory, Neil Lambert | Notes | Exercises
String Theory and Holographic Duality, Prof. Hong Liu | Notes
Introduction to Superstrings and M-Theory, Michio Kaku (Free download from Springer)
Strings, Conformal Fields, and M-Theory, Michio Kaku (Free download from Springer)
The following books may be helpful for reference: String Theory, Volume I, An Introduction to the Bosonic String, Joseph Polchinski, String Theory, Volume II, An Superstring Theory and Beyond, Joseph Polchinski.
String theory to the rescue, Joe Polchinski
The Feynman Lectures on Physics
The Theoretical Minimum
Alice and Bob Meet the Wall of Fire, Jennifer Ouellette
Why Is There Something, Rather Than Nothing?, Sean M. Carroll
1951 Lectures on Advanced Quantum Mechanics, Freeman J. Dyson
Notes from Sidney Coleman's Physics 253a, Sidney Coleman
Introduction to Quantum Field Theory, F.Mandl
You can also a find a large collection of curated videos on my youtube channel.
Thank you for visiting my website. If you have a question you would like to ask me about the resources, please send me a message through my contact form.