A very practical technique, it teaches you how to tie knots, and it's even in animation form. Close to 80 different methods for tying knots are shown, and each method comes with detailed annotations (unfortunately, they're in English).
Here’s one of the simplest: the figure-eight knot. If you enjoy going out to sea or fishing, you can take some time to study this.
Website address: Animated Knots by Grog
P.S.: While I'm at it, I'll criticize myself a bit — the reason for the typo is because I’m too obsessed with money.
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