It's a really interesting idea. She decided four years ago that she knew that for the next few years that most of her life was going to be spent with people photographing or filming her.
But she didn't want the world to only be able to see what other people saw through the lens.
So, during those four years she took a bunch of self portraits while her life was going to document how she saw herself through the camera.
The book is a collection of those photographs.
Pretty fucking cool.