The Ian Knot is a very efficient way to tie your shoes. For me, what more important is not it is simple and time-saving but rather cool and geeky. Though it’s not a hard trick to play, it still cost me a lot of time to learn. I suppose I’m not smart enough, that’s sad. Now I learnt the the Ian Knot and need more time to practice. Anyway, though It might take a few minutes to get right, but once you get used to it, you’ll be tying your shoes in two seconds flat.So it’s worthy to spend time learning that.