Books Women Read When No One Can See the Cover

If that woman next to you on the train seems unusually engrossed in her e-reader, there may be a good reason. Electronic readers, and the reading privacy they provide, are fueling a boom in sales of sexy romance novels, or "romantica," as the genre is called in the book industry. As with romance novels, romantica features an old-fashioned love story and pop-culture references like those found in "chick lit." Plus, there is sex—a lot of it. Yet unlike traditional erotica, romantica always includes what's known as "HEA"—"happily ever after."