fisk-king
Flashlight Enthusiast
I concur what others have said about Ashley's Book of Knots. First heard about it years ago online from Ray Mears and Mors Korchanski. Those two sold me on it.
Beat me to the post.Here is a great reference: U.S. Army FM 3-97.61 Military Mountaineering: 2002 Edition w/ Change 1: Ice, Rock, Cliff, Mountain Climbing: Knot Tying: Survival Field Manual Guide Book on CD-ROM
Amazon has it.