As an author, Amazon is where you need to be if you want to make a success out of your career, whether you’re publishing in Kindle Unlimited or publishing “wide” (to multiple retailers). But the competition these days is off the charts. You’ll need to write a great story, have an amazing cover and a good keyword research tool to help you set your book apart—whether it’s for Kindle keywords, competition analysis, or Amazon ads.
Luckily, there are a few tools out there that help you reverse-engineer the marketing of successful books. These tools are great for idea generation, market research and putting your book in the best position to sell well.
Two popular options are Publisher Rocket and KD Spy. In this article, we’ll compare them side-by-side and find out which is the best option for you.









