Book excerpt: The lovely sex advisors of Nerve.com fame are back! Amassing knowledge from years of counseling the sexually curious and courageous, Em and Lo now offer this essential sex toy field guide. With over 300 hilarious alphabetically listed entries, Sex Toy breaks down the hot hardware, from Ben Wa balls to softpacks to triple-action vibrators, so no one's ever stuck asking, "What the heck do I do with this?!!" In this sexy lexicon Em and Lo review the most popular toys, laud the most underrated toys, and throw in a few hilarious toys just for giggles. They explain the difference between a ball gag and a ball stretcher. When a back massager is really a "back" massager. Which dildo is best for stimulating the G-spot. What a nail file has to do with anal beads. And most importantly, what the heck a phthalate is and how you pronounce it. At long last, here are answers. You'll no doubt appreciate the safe usage, storage, and cleaning tips, too. Illustrated with saucy line drawings, Em & Lo's Sex Toy teaches everything you need to know about buying, enjoying, and caring for every sort of bedroom bling imaginable.