Nils's photographs are largely documentary and based on his perceptions of athleticism and physicality, the end result tending towards nature and the beast.

These images range from portraiture to still life and emphasize the spirit of sport.

Nils received his B.A. from Dartmouth College in Hanover, New Hampshire and earned his M.F.A. from the Rhode Island School of Design.

Nils lives in Portland, Oregon with his girlfriend Regina, their children Emmet and Faye, and dogs Pearl, Edith, and Miles.