One of my favorite undiscovered books is:

The Winter Wilderness Companion: Traditional and Native American Skills for the Undiscovered Season
by Garrett Conover, Alexandra Conover, Elliott Merrick

This one covers winter operations via snowshoe and tobaggan. More traditional skills rather than modern highly specialized skills. (Wool, cotton, rawhide, canvas, wood stoves rather than fleece, goretex, plastic, nylon and multifueled stoves). Much along an updated Paradise Below Zero by Calvin Rutstrum.