This method is a way of making a multicolored print using only one block.
Starting with the lightest color, each sheet of an addition will be printed with this color before that section is then carved away. The next darkest color is then printed in the same way and the block is then “reduced” as that color is then carved away. Continuing in this way until the last color, usually the darkest is printed. The block is then rendered useless and discarded.
A word about numbering and editions
A numbered edition is a series of prints that are similar to each other. There is always some variation that happens but that just makes every print unique. I run small editions of reduction prints because of the labor involved, usually 25 or less .A print documentation certificate comes with each print.