| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Kindle eBooks > Professional & Technical | 185 | 5,488 | £2,613 | |
80% | 15% | 0% | 13% | ~ 200,000 |
| Kindle eBooks > Professional & Technical > Technology & Engineering | 30 | 13,805 | £501 | |
100% | 0% | 0% | 7% | ~ 100,000 |
| Kindle eBooks > Professional & Technical > Law | 174 | 15,082 | £533 | |
85% | 5% | 5% | 20% | ~ 90,000 |
| Kindle eBooks > Professional & Technical > Transportation | 282 | 24,613 | £251 | |
90% | 10% | 5% | 27% | ~ 10,000 |
| Kindle eBooks > Professional & Technical > Transportation > Ships | 2,870 | 40,200 | £223 | |
100% | 20% | 10% | 60% | ~ 2,000 |
| Kindle eBooks > Home & Garden > Gardening & Horticulture | 375 | 46,865 | £167 | |
95% | 10% | 0% | 47% | ~ 10,000 |
| Kindle eBooks > Professional & Technical > Law > Perspectives on Law | 1,576 | 61,030 | £167 | |
90% | 15% | 0% | 7% | ~ 10,000 |
| Kindle eBooks > Professional & Technical > Law > Criminal Law | 78 | 87,314 | £138 | |
95% | 5% | 10% | 33% | ~ 6,000 |
| Kindle eBooks > Professional & Technical > Automotive | 343 | 91,175 | £139 | |
95% | 0% | 5% | 23% | ~ 4,000 |
| Kindle eBooks > Professional & Technical > Law > Family & Health Law | 612 | 119,452 | £92 | |
85% | 10% | 25% | 23% | ~ 30,000 |
| Kindle eBooks > Professional & Technical > Transportation > Aviation | 3,106 | 131,874 | £104 | |
85% | 10% | 5% | 23% | ~ 4,000 |
| Kindle eBooks > Professional & Technical > Transportation > Railways | 2,626 | 136,319 | £83 | |
95% | 0% | 5% | 40% | ~ 2,000 |
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