| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Kindle eBooks > Mystery, Thriller & Suspense > Crime Fiction > Serial Killers | 256 | 2,340 | $12,714 | |
90% | 40% | 45% | 90% | ~ 4,000 |
| Kindle eBooks > Biographies & Memoirs > True Crime > Serial Killers | 370 | 41,599 | $1,824 | |
90% | 10% | 30% | 77% | N/A |
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