http://selfpublishingreviews.blogspot.com/2017/09/kdp-rocket-review-best-keyword-tool-for.html | Authors usually have brilliant ideas for books. They love writing about their passions and come up with a book title and self publish it without thinking twice about keyword research. This is where Kindle keyword research comes into play. In this KDP Rocket Review, I'll show you why every author should have this tool.