At the end of the day a good knot can be the difference between landing that trophy fish or any fish at all. There are various fishing knots, some serve different purposes for techniques or styles of fishing but the one I have grown to love is the palomar knot.
This is a very easy knot to tie and the biggest bennefit is you get double the line strength where it counts most……the part that is tied closest to your bait.
Lots of short video clips and diagrams on how to tie this extremely effective knot on the internet, this falls into doing you research as a fisherman.
Read up on tieing knots and try some out, see which ones you think will add value to each outing on the water.