If you haven't heard of Carrie Sun, you probably haven't been paying attention. Like Gary Stevenson, Sun has a book out about her time in finance. Like Stevenson, she is suddenly ubiquitous. But while Stevenson was a macro trader who made a fortune trading rates at Citi, MIT graduate Sun was by choice mostly a mere personal assistant (PA) to the founder of a "cross-over fund." Part hedge fund, part private equity fund, part venture capital fund, it did a bit of everything. In the process, it made its founder very rich.