Romance and erotica is the top revenue-generating literary category in the US, accounting for more than half of all mass-market paperbacks sold. https://bookstr.com/article/book-genres-that-make-the-most-money/
Romance and erotica is the top revenue-generating literary category in the US, accounting for more than half of all mass-market paperbacks sold. https://bookstr.com/article/book-genres-that-make-the-most-money/