A lady by the name of Barbara Tilley has a free book you can download on her site. The title of her book is "WIRE Fun".
Project 5 starting on page 32 shows a three wire pendant wrap. Her pictures and instructions are great. I do not know her but, I am impressed with the way she puts her tutorials together and her web site.
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Simple Wire Wrap Techniques by: Anonymous
If you want to keep things simple and are new to wirewrapping here are a couple of easy ones to try:
The switch knot is a decorative lacy macrame/ hemp jewelry knot that helps you save on twine too. This tutorial shows you how to tie one with clear pictures and instructions.
A sliding knot is a wonderfully easy way to end off a leather, string, hemp, or corded necklace or bracelet. It looks neat and stylish, is a very practical closure, and is very easy to make.