List the book you're currently working on. At this moment I'm not working on anything, but I have a list of potential topics I'd love to write about.
I am working on a short series about Unlocking Your Mind and using ones potential. It's primary meant as a lead magnet. I don't expect to make money directly from it. I published the first one and it went live on Amazon today. Link
I am targeting the 15 min short reads section on Amazon. Let's see how that converts into subscribers.