Got into this a few years back when a traditional publisher passed on my manuscript. The obvious route is throwing it up on Amazon KDP, but that’s just the starting gate. You need to think about pricing tiers—maybe a lower intro price to hook readers, then bump it up once you’ve got some reviews. I always put the ebook out first, wait for a bit of momentum, then launch the paperback. Creates a second wave of interest.
What a lot of people sleep on is direct sales from their own website. Using something like Gumroad or BookFunnel to sell DRM-free copies means you keep nearly all the profit. It’s a pain to drive traffic there, but building an email list through a reader magnet (like a free prequel short story) is how you make real money long-term. The monthly income from my backlist titles on my own site is way more stable than anything from Amazon, where a single algorithm change can tank your visibility overnight. Plus, you own the customer relationship.
Audiobooks are the next frontier if you can swing the upfront cost. ACX has royalty-share options with narrators so you don’t pay anything out of pocket, but you split the profits forever. I went with a hybrid model for my last one—paid a smaller fee upfront and kept a higher royalty. It’s a slow burn, but once you have a few titles in a series, the audio sales really start to compound. Bundling the ebook and audio for a discount through Amazon’s MatchBook thing can also boost overall units sold. Just don’t expect to get rich from one book; it’s a volume game where each title feeds the others.