Knots, 2nd Edition: A Folding Pocket Guide to Purposeful Knots (Pocket Naturalist Guide) (Pocket Tutor Series)

Knots: A Folding Pocket Guide to Scouting & Household Knots (Outdoor Recreation and Survival)

Edible Wild Plants: A Folding Pocket Guide to Familiar North American Species (Nature Observation North America)

Animal Tracks: A Folding Pocket Guide to the Tracks & Signs of Familiar North American Species (Nature Observation North America)