Passive income: NO

Earning passive income solely from writing and selling a book is possible, but the likelihood varies for individuals. Setting up systems like automated marketing, outsourcing editing and design, and leveraging print-on-demand services can help make the process more passive. While some authors do achieve passive income from book sales alone, it's more common for authors to supplement their income through related activities like speaking engagements or courses. Success in earning purely passive income from book sales typically requires niche topics, effective marketing, and a strong readership base. Many authors find that ongoing promotion and engagement are necessary to sustain passive income. It's important to manage expectations and understand that significant effort may still be required even after the book is published.