I often find that books geared towards dating (or other things) are also great for those of us who swing. I happened to run across this book at a discounted price for the Kindle, so I snagged it to see if it had any helpful tips that we could apply as swingers. I am happy to report that it did.
Flirt Fearlessly: The A to Z Guide to Getting Your Flirt On
is definitely geared towards the dating crowd, but it had a few gems that make it worth reading for swingers. I'd definitely recommend this to those who have some issues in the area of flirting, whether it's that you feel uncomfortable flirting or just don't quite know when others are flirting with you.