| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Books > Science & Nature > Biological Sciences > Hydrobiology | 4,018 | 48,722 | £547 | |
95% | 10% | 0% | 4% | ~ 10,000 |
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