Most tools and advice aimed at KDP authors come from people who've studied the platform from the outside. Troven's KDP operation is the opposite: it's a real publishing business, generating real royalty income, run the same way any of our other operating businesses are run.
It's also where Troven Ads Optimizer actually came from — the founder ran the ad optimization process by hand across this catalog for three months before deciding it was worth building software around.
Nonfiction, across a small number of active pen names and categories. Built and managed with the same operational discipline as everything else Troven does.