PiTP-String Compactifications, Part 1 - Edward Witten
PiTP-Some Basics of String Phenomenology, Part 1 - Herman Verlinde
PiTP-String Compactifications, Part 2 - Edward Witten
PiTP-Some Basics of String Phenomenology, Part 2 - Herman Verlinde
String Compactification (1 of 3) - Martijn Wijnholt
PiTP-Supersymmetric Grand Unification, Part 1 - Stuart Raby
PiTP-Some Basic Superstring Theory, Part 1 - John Schwarz
PiTP-Introduction to F-theory - Herman Verlinde
PiTP - 2+1-Dimensional Gravity Revisited - Edward Witten
PiTP-LHC: a Crash Course - NIma Arkani-Hamed
Prof. Edward Witten, "Fermions and Topological Phases II", Part 1 of 2
Compactifications
Seiberg-Witten Theory, Part 1 - Edward Witten
PiTP-Some Basic Superstring Theory, Part 2 - John Schwarz
Michael Douglas - Kahler geometry in string compactification
PiTP 2015 - "Fermion Path Integrals and Topological Phases" - Edward Witten
PiTP - Warped Conifolds and their Applications to Cosmology - Igor Klebanov
PiTP-Supersymmetric Grand Unification, Part 2 - Stuart Raby
Strong coupling dynamics of string theory (M-theory) - Edward Witten (1995)
Some difficult problems in string compactifications and string phenomenology by Manki Kim