| 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 > Engines & Power Transmission | 6,157 | 332,772 | £360 | |
95% | 0% | 0% | 0% | ~ 2,000 |
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