Bill Nelson's "The Nelson System for the Coyote - Wolf - Bobcat - Fox and Cougar Trapper" Book is a classic 48 page book that was written in 1955 and details many sets and trapping situations. Bill Nelson was a well known trapper, writer and lure maker who operated traplines in Iowa, Missouri, Minnesota, Wisconsin, Montana, Colorado and California.

Bill Nelson's "The Nelson System for the Water Trapper" Book is a classic 48 page book that was written in 1954 and details many sets and trapping situations for mink, otter, beaver, muskrat and raccoon. Bill Nelson was a well known trapper, writer and lure maker who operated traplines in Iowa, Missouri, Minnesota, Wisconsin, Montana, Colorado and California.