Here are the key takeaways from the article about Kindle Keywords:
Key Findings from Keyword Experiment: 1. Filling in more characters (up to 50) in keyword boxes increases book indexing for more search terms 2. Amazon rearranges and indexes variations of entered keywords automatically 3. Specific keyword phrases help improve initial search rankings 4. Including keywords in title/subtitle provides 37% better ranking boost compared to keyword boxes
Recommended Keyword Strategy: 1. First 1-3 Boxes: Use highly specific, relevant phrases that: - Perfectly describe your book - Have actual shopper searches - Are not overly competitive
Next 1-2 Boxes: Target specific categories using category-specific keywords
Remaining Boxes: Fill with broad, niche-specific terms describing:
- For Fiction: Character roles, settings, story catalysts, genre - For Nonfiction: Reader pain points, success goals, reader demographics
Critical Insights: - Repeating keywords doesn't help or hurt rankings - Amazon evaluates overall book metadata to determine keyword relevance - Balance between broad indexing and specific ranking is key
Practical Tip: Use tools like Publisher Rocket to research keyword search volumes and competition levels to optimize your strategy.
You are limited to 50 characters for each of the 7 slots (350 characters total). I recommend this slick tool to make the most of the real-estate KDP provides.
Other tools that I've used in the past:
Squeeze in more keywords! Making the most of the real estate you are given: