| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Kindle eBooks > Engineering & Transportation > Engineering > Mechanical > Automation | 7,970 | 758,784 | $279 | |
90% | 10% | 20% | 30% | ~ 2,000 |
| Kindle eBooks > Engineering & Transportation > Engineering > Computer Technology > Robotics & Automation | 5,142 | 758,784 | $279 | |
85% | 25% | 25% | 33% | ~ 2,000 |
| Kindle eBooks > Crafts, Hobbies & Home > How-to & Home Improvements > Plumbing & Household Automation | 93,092 | 790,759 | $279 | |
95% | 15% | 55% | 47% | ~ 182 |
| Kindle eBooks > Business & Money > Skills > Office Automation | 36,047 | 1,023,153 | $0 | |
100% | 10% | 55% | 60% | ~ 337 |
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