11 Most Profitable Kindle Niches and Categories

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8. Self-Help

No matter what you think of Oprah’s many guests throughout the years, no one can deny the $10 billion (in the U.S) self-help industry. There is no shortage of people trying to seek help in their own time and at their own pace. If you can use a DIY blueprint to build your own trinket or other item, then you should certainly be able to use the same kind of blueprint to understand yourself better, build your confidence, or whatever you need to work on.

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