There are three possible parts to a date, of which at least two must be offered: entertainment, food and affection. It is customary to begin a series of dates with a great deal of entertainment, a moderate amount of food and the mere suggestion of affection. As the amount of affection increases, the entertainment can be reduced proportionally. When the affection is the entertainment, we no longer call it dating.' Miss Manners

In Not Tonight, Mr Right, Kate Taylor teaches modern women how, why and when not to have sex. OK, it doesn't sound very liberated, but it is very empowering... well, it's mainly just hilarious, but does make a lot of sense too.

Quiz: How Much Do You Need This Book?
1. Have you ever had sex when, looking back, a simple 'Thanks for dinner' or 'I'm sorry I forgot your birthday' would have sufficed?
2. Have you ever tried to win back a bored boyfriend with a complicated technique called something like 'Crouching Tiger, Hidden Hard-On'?
3. Have you ever had sex with someone you weren't that keen on, but still felt irrationally annoyed when they didn't call you again afterwards?
4. Have you ever wished you knew the perfect moment to shag?