Sex education
Need help in the sack?

Sarah Gold, a senior reviews editor at Publishers Weekly, said relationship advice books used to pile up on her desk only before Valentine's Day. Now she gets a steady barrage year-round.

With book sales down 2.8 percent last year, to $24.3 billion, according to the Association of American Publishers, the industry seems to be banking on readers' hormones and heartache. Gold credits the wild success of Greg Behrendt's "He's Just Not That Into You," published in 2004, for opening the floodgates. The tough-love tone of that book tapped into a young audience reared on "Sex and the City," she said.

"I think you're seeing a lot more books now with a similar tone," Gold said. "It's caught on as a way to reach younger readers."

Aroused? Here's a sampling of some hot and steamy relationship literature. While the messages often are the same (you have to love yourself before you can find love, it takes upper-body strength to perform the wheelbarrow, etc.), each book offers different strokes for different folks.

If you ... Can't understand why your man hasn't proposed
Check out ... "Will Marry for Food, Sex and Laundry" by Simon Oaks
The gist: A bachelor-turned-husband reveals the inner workings of the male mind to teach ladies how to get and keep the man of their dreams. Excerpt: "Complaining that he looks like a slob on Sunday when he's watching football in the den is pointless (and obnoxious). Save your nagging for the important stuff."

If you ... Always hoped to act out Prince's '23 positions in a one-night stand'
Check out ... "Forbidden Knowledge: Sex. 101 Sensual Acts NOT Everyone Should Know How to Do" by Clare Bailey
The gist: Step-by-step instructions on the naughty (how to have a threesome), the serious (how to reveal you have an STD) and the weird (how to recognize an asphyxiophiliac).

If you ... Are suffering from some low self-esteem
Check out ... "How to Love Like a Hot Chick" by Jodi Lipper and Cerina Vincent
The gist: The first rule of hot-chick club is to know that you are a hot chick. With that confidence, learn to love your single-hood, ask a guy out, scout out the 20 best places to meet men (ie., the bank, the dry cleaners, the grocery store), recognize a good relationship when you have it and a bad one when you don't.

If you ... Need to spice up your sex life
Check out ..."1001 Sexcapades to do If You Dare" by Bobbi Dempsey
The gist: Entry 739: "Use a juicy piece of fruit (strawberries are a good choice) to leave a line along your partner's body. Then go back and let your tongue follow the sweet trail. You can also do this with liquor."

If you ... Hide your latest Nora Roberts romance novel behind the Economist
Check out ... "Beyond Heaving Bosoms: The Smart Bitches' Guide to Romance Novels" by Sarah Wendell and Candy Tan