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Category name Best seller rank 50th book's rank Median sales($) Median price ($) Volatility (%) New releases (%) Self pub.(%) KDP Select (%) Competition
Books > Children's Books > Science, Nature & How It Works > Astronomy 662 8,999 £1,646 £7.35 90% 5% 0% 0% ~ 7,000
Books > Sports, Hobbies & Games > Hobbies & Games > Puzzles & Quizzes > Mathematical Games 552 16,905 £963 £8.6 80% 5% 20% 0% ~ 2,000
Books > Science & Nature > Astronomy & Cosmology > Astronomy 568 19,347 £588 £7 95% 0% 0% 8% ~ 50,000
Books > Science & Nature > Astronomy & Cosmology 552 22,964 £1,328 £6.78 90% 0% 0% 5% ~ 60,000
Books > Science & Nature > Reference > Astronomy & Cosmology 1,038 26,950 £486 £8.69 85% 0% 0% 0% ~ 6,000
Books > Science & Nature > Mathematics > Mathematical Foundations > Mathematical Logic 1,427 30,334 £506 £9.04 85% 0% 0% 0% ~ 7,000
Books > Science & Nature > Popular Science > Astronomy 892 36,193 £610 £10.91 90% 5% 0% 0% ~ 1,000
Books > Science & Nature > Mathematics > Mathematical Foundations 1,233 49,591 £759 £9.04 80% 0% 10% 0% ~ 10,000
Books > Science & Nature > Mathematics > Calculus & Mathematical Analysis 3,159 58,974 £270 £9.67 100% 7% 50% 20% ~ 40,000
Books > Science & Nature > Mathematics > Mathematical Theory 5,469 64,092 £305 £10.92 100% 0% 5% 0% ~ 8,000
Books > Science & Nature > Astronomy & Cosmology > Solar System 3,814 64,565 £256 £9.16 90% 0% 5% 4% ~ 2,000
Books > Science & Nature > Physics > Mathematical 3,558 70,037 £334 £11.95 95% 21% 30% 0% ~ 10,000