The name of the woman is Susan Kare. Looking at her sketchbooks brings tears to my eyes (as it should to every Mac aficionado that started with rainbow-filled apples).
It looks like doodles you would make at the back of high school math notebook, no?
(Of course, via Kottke)
This is wonderfully complemented with a little video of Larry Tesler speaking about how they worked on developing Mac’s graphical user interface.