Re: Essential knots?
Only one person mentioned a sheetbend?
For tying two lines together you best be using bend of some sort. I will not tie two lines together using anything else. Two bowlines is a slackers way of getting away not knowing the proper knot. MAYBE for a very short period of time, but left alone and loaded and unloaded they will chafe. Not very seamanlike.
You should know the knots that have been previously mentioned as well as at least two bends and variations thereof.
Oh, and the Ashley stopper is okay, but an easier knot to tie, more compact and flatter on the side of the knot that you want to "stop" is the Stevedore's stopper. Just like a figure 8 but with an extra half twist. Snug it up and it is much better than an Ashley or an 8.
CS 36M DIANTHUS