Can someone please suggest me some good lecture notes (not books) on Elliptic PDE?

I am reading the book by Trudinger at my own and in the book there are many lemmas whose proofs are quite long (and boring). That's why I am searching for lecture notes to see what are the calculations I can skip during first reading.

Edit: I am now interested to learn some parabolic PDE as well. I will appreciate any lecture note / reference on parabolic PDE (especially those references which are useful for application of parabolic PDE in geometric flows).