The most lucrative e-book category seems to be fiction, specifically focusing on romance novels and its offshoot known as monster porn where women have sex with Bigfoot, space aliens, dragons, or hobbits. One reason why such romance books are so popular as e-books is because of the anonymity of reading an e-book. Try reading a lurid Harlequin romance novel in public and everyone can see exactly what you’re reading by glancing at the flowery book cover that depicts men with rippling muscles passionately embracing a thin, beautiful woman.
Yet when translated into an e-book, that cover becomes invisible to everyone around you. Nobody can tell what you’re reading when you read an e-book. All they can see is that you’re reading something on a smartphone or tablet. That gives you the freedom to read whatever you want whenever you want without any sense of shame or embarrassment whatsoever.
That’s one of the biggest advantages of e-books. If you have a book that might cause embarrassment to readers, it will likely be more popular as an e-book than as a printed book. For example, someone struggling with alcoholism wouldn’t want to take a book on alcohol recovery to work in case someone might spot them reading it, but they can easily read that exact same book as an e-book without any fear of having their secrets revealed or discovered.
Someone reading a book on relationships or how to find a perfect mate might likewise be squeamish about someone finding out what they’re reading, but an e-book provides complete anonymity. No one needs to know what you’re reading nor will they ever know so you can read an e-book about curing joke itch in a crowded conference room and your boss and co-workers will never know.
So if you have a book topic that could cause embarrassment if others know what you’re reading, you’ll likely find that topic will sell more copies as an e-book solely because of this anonymity factor. Use this fact to your advantage and you may be surprised at the results.