| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Hydraulics | 45,714 | 335,577 | £259 | |
100% | 0% | 25% | 7% | ~ 5,000 |
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