Amazon is by far the largest seller of both physical and e-books, commanding well over half of sales in the United States and, by some estimates, over 80% of the e-book market. Its Kindle Direct Publishing service has spawned a cottage industry of self-published novelists, carving out particular niches for enthusiasts of erotic content and self-help books.
ChatGPT launches boom in AI-written e-books on Amazon geo.tv - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from geo.tv Daily Mail and Mail on Sunday newspapers.