Many authors explore Kindle Direct Publishing because of the potential to earn recurring royalties from books that continue selling after publication.
When a book sells on Amazon, the author earns royalties based on the book’s price and royalty rate. If a book continues selling over time, those royalties can create ongoing income.
Learn how royalties work in our Amazon KDP royalties guide .
Many successful KDP publishers build multiple books within a niche. Each additional book increases the opportunity for sales and royalties.
Some niches generate more consistent sales than others. Learn how niche research works in our KDP niches guide .
Even books designed for long-term sales benefit from ongoing promotion and visibility improvements. See our KDP marketing guide .
Passive income from publishing typically develops gradually as authors expand their catalog and improve discoverability.
Some authors build book catalogs that continue generating royalties long after publication.
Books can continue selling if they maintain search visibility and reader demand.
Authors often publish multiple books and optimize keywords, categories, and marketing.