Here is a handy design for a knot reference! Waterproof plastic knot cards mean you can take this little reference (just 2 1/4 x 3 1/2) with you
Pro-Knot Outdoor Knot Cards
The 10 Most Useful Backpacking Knots
The Book of Outdoor Knots — Nature's Workshop Plus
Waterford Press Ltd. Duraguide: Outdoor Knots: A Waterproof Guide To Essential Outdoor Knots
Essential Camping Knots – Featherstone Outdoor
ReferenceReady Outdoor Knots - Waterproof Knot Tying Cards with Mini Carabiner - Includes 22 Rope Knots for Camping, Backpacking, & Scouting Scenarios
Knots For The Outdoors
Backpacker magazine's Outdoor Knots: The Knots You Need To Know, First Edition - 9780762756513
Knots have three practical purposes, to attach a rope to another rope, to attach a rope to an object or to allow a rope to perform a function. All
Outdoor Knots - Waterproof Pocket Guide