The materials in this section are not mine; they were created and shared by the authors listed below. This page collects freely accessible resources for a deeper understanding of the subject. I may have missed useful lecture notes or courses, so please feel free to send me additional suggestions!
Online Seminars in Economic Theory (VSET), with associated YouTube channel
Lecture notes in Information and Learning by Annie Liang (Northwestern University)
Lecture notes by Todd Sarver (Duke) on comparative statics and much more -- check the Microeconomics (PhD Core) course
Lecture notes by Bill Sandholm (University of Wisconsin)
Lecture notes by Ludvig Sinander (Oxford & Nuffield College) on belief hierarchies and robustness
Book by Eddie Dekel (Tel Aviv and Northwestern University) and Marciano Siniscalchi (Northwestern University)
Books and Lecture Notes by Ariel Rubinstein (Tel Aviv University and NYU)
Lecture Notes by Jonathan Levin (Stanford)
Lecture Notes by Tilman Börgers
Kim C. Border repository
Courses by Marc Dean (Columbia)
Books and Lecture Notes by Ariel Rubinstein (Tel Aviv University and NYU)
Book on Stochastic Choice Theory by Tomasz Strzalecki (Harvard)