| 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 > Electrical & Electronics > Optics > Optoelectronics | 854,688 | 3,072,186 | $0 | |
100% | 0% | 35% | 20% | ~ 274 |
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