I believe knot-tying would be a great, life-long skill to have, especially being able to know which knots work best for different situations, like when the rope is thick and not very flexible or bendable.
I have lots of nylon rope and fishing line of various diameters, but don’t know where to begin and/or the best way to get started. My goal is to make this a long-term hobby and spend 1-2 hours per week improving my knot-tying knowledge, skill, and speed.


animatedknots.com - amazing step by step on how to properly tie things. The downside is that there are a lot of knots that are either hyper specific or more decorative than anything. I climb and sail - both are knot-heavy. 95%of the time I use one of five or six knots/hitches. I’d focus on the utilitarian knots personally. These are the knots that can accomplish real stuff - but if you get them wrong, could be fatal in the wrong circumstances.
Bonus knots *alpine butterfly - gives you a load bearing loop in the middle of a rope without requiring access to the ends. An overhand on a bight also gives a loop, but the overhand can move when loaded. Alpine butterfly stays where you put it, looks cool, and is fun and easy to tie. *prussic - this hitch can slide along a rope when unloaded and then locks when you apply weight. This let’s you move up or down a fixed line. A Texas Prussic involves one prussic attached to your harness and one free but with a foot loop. Hang on the harness prussic, slide the unloaded foot one up the rope. Stand up on the foot one (locks in place) and slide the unweighted harness loop up the rope, sit back down in your harness. Congrats, you just ascended 100mm up a rope. Rinse and repeat until you get to the top or reverse the process to go back down.
The midshipmans hitch (or the inferior scouting version called a taut-line hitch) is technically less useful in almost all cases to the Truckers Hitch you mention, but it is pretty good for tying down tarps and shit for camping, so the point that the people you are with will think you are some kind of amazing outdoors genius for whipping it out like its no big deal.
Also for camping: Tying a tight ridge-line using a truckers hitch across the top of your site and then using it to dangle lamps or to anchor tarps or hang clothes to dry or whatever using sliding prusik knots tends to impress as well. I like prusiks for this over the alpine butterfly because you can just tie the loops ahead of time and they are easy to slide around along the ridgeline.
I mostly use:
Sounds like there are some other ones I could learn too! But as many folks have said, learn a coupe and use them frequently.
Oooh thank you very much for the list. A friend showed me a knot once which allows one to transport stuff from end to the other, something akin to a rail like system. Maybe it was this alpine knot you mentioned. Very cool!