This is the collection of my written notes for MATH 499, Fall 2019. This course covers a collection of chapters of the book written by Guionnet, Anderson and Zeitouni, as well as some interesting results from other papers. Since I am a little bit tight on schedule, I just post my written notes, rather than typing them in latex. This collection will not serve as a serious reference, but as a personal record (“Oh this was what I did back then, the g’old times….yada yada yada…”). Plus, I believe my handwriting is decent and relatively easy to read.