William H. Hays is a printmaker who works in linocut and woodblock color printmaking methods. These involve either multiple blocks or a reduction process, in which additional areas of the block are cut away for each successive application of color.
There is a blog post on his website that describes his process, and a short video on YouTube with a step-through of stages.
The reduction process process involves a good deal of forethought and planning, as each color must interact with those that have been laid down in previous passes through the press. He uses both high and low chroma passages to give his pieces both visual drama and reflective subtlety.
His subjects are landscapes, and his process encourages him to refine the landscape elements into discrete areas of color and tone which interlock with other areas to produce a harmonious whole.