Idle Nutt

Artist Bryan Nash Gill makes ink prints using rescued wood.  He has a book titled Woodcut that showcases these prints. 

WSJ:

Red Ash Heartwood. The heartwood is the central nonliving part of the trunk with the densest and hardest wood. This is a full bleed print of the center of the Ash block–the annual ringed radiate form the tree’s first year at the center to the edges of the paper.

(via WSJ)