>>2518223Eh. I tend to think in terms of what I might need to do with cordage.
1. I might want to tie 2 together to make a longer line. For that I would want to know a Sheet Bend.
2. Anchoring. That Taugtline is an anchor know but I much prefer a Bowline over it. Unties much easier and less likely to slip. Tattling is good for something you need to adjust tension on though, line a tautline or hammock straps.
3. Attachment point. If I want to tie something along the middle of a line I'd want to know the Alpine Butterfly knot.
Honestly those 3 knots should get a person by in a lot of situations. If there is room in your brain you could also learn:
1a - Zeppelin Bend
2a - Constrictor Hitch
3a - Prusik knot
Honorable mention to the Quick Release version of the Canadian Jam knot.