But if this is your vision of the romance-writing world, you might have missed its evolution into a billion-dollar-a-year business. In 2016 romance made up 23 percent of the overall U.S. fiction market, and the net worth of some of its writers exceeds that of John Grisham (see Nora Roberts and Danielle Steel). According to Christine Larson, a romance expert and journalism professor at the University of Colorado Boulder, 45 percent of the romance writers she surveyed made enough to support themselves without a day job—“that is shocking for any group of writers,” she said—and thanks mainly to their embrace of digital publishing, 17 percent make more than $100,000 a year. Not Mark Zuckerberg money, but far more than the $45,000 median income of American working women.