| Category name | Best seller rank | 50th book's rank | Median sales($) | Median price ($) | Volatility (%) | New releases (%) | Self pub.(%) | KDP Select (%) | Competition |
|---|---|---|---|---|---|---|---|---|---|
| Books > Young Adult > Science & Technology | 180 | 1,637 | £6,330 | |
75% | 0% | 0% | 3% | ~ 30,000 |
| Books > Children's Books > Computers & Technology | 98 | 2,697 | £4,521 | |
100% | 15% | 0% | 0% | ~ 7,000 |
| Books > Children's Books > Computers & Technology > Entertainment & Games | 145 | 3,404 | £3,240 | |
90% | 10% | 0% | 0% | ~ 2,000 |
| Books > Science & Nature > Engineering & Technology | 30 | 3,671 | £8,277 | |
100% | 10% | 5% | 4% | ~ 200,000 |
| Books > University Textbooks > Engineering | 39 | 4,930 | £6,699 | |
100% | 0% | 35% | 15% | ~ 200,000 |
| Books > Fiction > Science Fiction > Genetic Engineering | 121 | 8,637 | £2,011 | |
95% | 10% | 25% | 33% | ~ 10,000 |
| Books > Young Adult > Science & Technology > Technology | 941 | 10,445 | £1,220 | |
85% | 0% | 5% | 3% | ~ 1,000 |
| Books > Young Adult > Science & Technology > Chemistry | 1,044 | 11,536 | £1,094 | |
100% | 0% | 0% | 0% | ~ 2,000 |
| Books > Young Adult > Science & Technology > Physics | 941 | 11,775 | £924 | |
100% | 0% | 0% | 0% | ~ 3,000 |
| Books > Science & Nature > Engineering & Technology > Civil Engineering | 656 | 12,408 | £1,260 | |
100% | 21% | 40% | 3% | ~ 100,000 |
| Books > Science & Nature > Engineering & Technology > Education | 1,108 | 13,255 | £879 | |
100% | 10% | 15% | 0% | ~ 70,000 |
| Books > Science & Nature > Engineering & Technology > Aeronautics & Aerospace | 197 | 13,289 | £1,118 | |
100% | 31% | 20% | 5% | ~ 20,000 |
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