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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 > University Textbooks > Engineering > Mechanical Engineering 8,420 62,839 £498 £17.8 100% 21% 30% 3% ~ 10,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering 1,590 65,626 £716 £12.79 95% 25% 5% 0% ~ 80,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Materials Science 1,054 194,097 £471 £16.85 85% 5% 5% 0% ~ 40,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Engines & Power Transmission 6,157 332,772 £360 £12.89 95% 0% 0% 0% ~ 2,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Hydraulics 45,714 335,577 £259 £9.25 100% 0% 25% 7% ~ 5,000
Books > Scientific, Technical & Medical > Engineering > Mechanical & Material Engineering 1,291 496,380 £437 £15.62 95% 5% 0% 0% ~ 50,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Fluid Mechanics 28,359 550,796 £854 £30.53 100% 0% 5% 0% ~ 4,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Dynamics & Vibration 50,717 745,469 £0 £44.22 95% 0% 0% 0% ~ 5,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Engineering Thermodynamics 28,359 1,078,793 £589 £21.04 100% 0% 5% 0% ~ 2,000
Books > Science & Nature > Engineering & Technology > Mechanical & Materials Engineering > Materials Testing 84,753 1,177,842 £0 £61.86 100% 0% 15% 0% ~ 4,000