You're a Nice Guy, But You're Bad in Bed: A simple, unapologetic guide to help you behave like a decent human being in the bedroom.

This concise guide is a great gift for the new man in your life. Or the old man in your life. Or literally any man.

It breaks down the basics of being a good lover no matter what the particulars of the sex or participants. Whether it's a one-night stand, friends with benefits, a long-term committed relationship, or a marriage, sex can be good in just about any context. Ms. Gilmore doesn't judge anyone for their sexual preferences, how often they have sex, or...