It is a wonderful catalog, but I don't find it to be as useful for learning to tie the actual knots as books by Budworth, Pawson, etc. (or Youtube, these days)

One of the cool aspects of knots for this audience is that they have a unix-like aspect where multiple individually-useful knots can be "piped" together, the example I like to use is the Trucker's Hitch:

https://www.animatedknots.com/truckers-hitch-knot

(which also can be tied in multiple ways, depending on which knots you combine to make it)