[1] https://www.animatedknots.com/lanyard-knot
[2] https://www.animatedknots.com/midshipmans-hitch-knot
[3] https://www.animatedknots.com/constrictor-knot-twisting-meth...
They made a cool thing. It is valuable to me. I paid for it, and we're done.
The app downloads once and doesn't need an internet connection. If you drew a Venn diagram of "Times I want to Know How to Tie a Specific Type of Knot" and "Times When I Am Out of Cellphone Range", there would be significant overlap between the two circles.
I'm not a particularly good follower of technical diagrams, but I find the instructions to be very clear and easy to follow. It's rare that I don't get a knot right the first time.
I've secured tarps, tents, clothes lines, gear onto vehicles and (most recently) a mountain bike that was missing its rear suspension, all thanks to this app.
Here's the link to the app available for various devices: https://www.animatedknots.com/shop
EDIT: I forgot about the fishing knots. No matter how good the app is as a resource, I always get confused and frustrated by fishing knots. But I also get confused and frustrated by fishing, so I can't really blame the app for this.
I’m just sharing a useful knot and not trying to get into a Vim vs. Emacs type argument or anything.
There is a very nice animation on the site for the Monkey's Fist (where I just now learned the finishing touch to deal with the loose end of the line).
Place where I first heard about the Ashley Book of Knots (ABOK). The book is a historical gem, as well as the official reference for knots. Great stories about knots.
Trucker's Knot, with cool reference to Ylvis, of What Did the Fox Say? https://www.animatedknots.com/truckers-hitch-knot
My only complaint is that the cord tends to be a bit stiff but that's unavoidable if you're using real cord.
https://www.animatedknots.com/bowline-knot
There's a way of tying it one-handed as well, which can be useful in rescue scenarios (i.e. you are a hiker who fell into a ravine, and someone lowers a rope to you. Even if one arm is broken/disabled you could tie a bowline around your waist with your other arm)
https://notableknotindex.webs.com/
contains a short list of knots along with insightful comments on their use. Some, like the Slipped Buntline Hitch, show alternative forms to alleviate deficiencies (jamming in this case) or for different use cases. One of my favorites is the Versatacle, which provides a pulley like mechanical advantage. It's been my go-to tensioning knot since learning about it. Animated Knots is great for understanding the form of knots like the Zepplin Bend, and I use both sites when learning a new knot or brushing up on an old one.