In bed asleep, eating, in her underwear or even displaying her scars after weight-loss surgery, photographer Jen Davis has always been as comfortable in front of the camera as she is behind it.

But when Davis, 36, set out on a "journey of self-discovery" to explore her own weight problem through a series of self-portraits, she discovered a side of herself she didn't know existed.

The results were just published in the book 11 Years. Davis came up with the idea in 2002, when she was a student.