So you want to sell 10,000 copies of your book?
Write a book that 10,000 people want to read.
If you think I’m being facetious, you’re half right. If you think I mean you should write a book that has broad appeal, to cater to the mass market, you’re dead wrong. For people to want to read (and recommend) a novel, you need one thing.
A great story.
One that’s well told, with compelling characters, a protagonist who wants something that is achievable but difficult to get, an antagonist that puts up enough obstacles to overcome, and a resolution that is satisfying to your readers. It’s no wonder crime stories are so popular, they hit these beats as a matter of course, but it’s important that your story does too, no matter what the genre.