When adding and ending thread in your beadwork, make sure that you use a secure knot to fasten the threads. Making good knots can prevent your thread from unraveling and will make your beadwork last longer.
Take the time to review these knots and practice tying them. While it can be tricky to learn how to tie a good knot when doing beadwork, it will greatly improve the quality and durability of your work.
A surgeon's knot is probably one of the trickiest knots to learn, but it is very secure and can easily be hidden inside of a bead with a moderately large hole. These knots are great when working in an open weave stitch such as right angle weave or netting.
A half-hitch knot is probably the most commonly used knot in beadwork. It works very well when used in multiples to add and end new thread in your beadwork, and with a small drop of glue or fresh, clear nail polish can be just as secure as a square knot or surgeon's knot.
Square knots are another good choice when working in open weave stitches such as netting stitch and right angle weave. They are very secure, and very easy to hide in between beads or even inside of seed beads.
A lark's head knot is an extremely secure way to add a new thread when working with double thread. It can sometimes be used to add single thread, but should be secured with either a small drop of glue or a drop of fresh, clear nail polish.