Personal notebooks of a Fields medalist

Question

I once read that some Fields medalist published all of his personal handwritten notebooks, and that they are freely available somewhere on the net.

I can't remember whose mathematician it was, so I can't find the notes anymore. Do someone knows who it is and where to find the notes?

I remember browsing the notes, I find it quite fascinating that we can follow a little bit his flow of thought. I think it is of great pedagogical value.

Answer 1

Daniel Quillen (Fields Medal 1978).

Here is the link to his notebooks.