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Six Sigma: Amazon KDP category data

Amazon Books Best Sellers data for Six Sigma, updated Nov 2, 2026: median price $27, median 90 reviews, average rating 4.5 and a KDPTop opportunity score of 24/100 (highly competitive).

24Opportunity / 100
$27Median price
90Median reviews
Price range (middle 50%)$15.02 – $52.12
Average rating4.5
New releases (90 days)2%
Books on the list100
StoreBooks

What stands out

  • Only 2% of its best sellers are under 90 days old, fewer than in 93% of Books categories: established titles hold the list.
  • At $27 its median price beats 86% of Books categories, leaving more margin per copy.
  • Prices spread wide: the middle half runs from $15.02 to $52.12, so budget editions and premium or boxed sets sell side by side.

Top 10 Six Sigma best sellers

  1. The Toyota Way, Second Edition: 14 Management Principles from the World's Greatest Manufac book cover by LIKER

    The Toyota Way, Second Edition: 14 Management Principles from the World's Greatest Manufacturer

    by LIKER

    • List rank#1
    • Price$17.76
    • Rating4.7
    • Reviews1,247

    View on Amazon · Full data on KDPTop

  2. The Lean Six Sigma Pocket Toolbook: A Quick Reference Guide to 100 Tools for Improving Qua book cover by Michael L. George

    The Lean Six Sigma Pocket Toolbook: A Quick Reference Guide to 100 Tools for Improving Quality and Speed

    by Michael L. George

    • List rank#2
    • Price$10.34
    • Rating4.6
    • Reviews3,319

    View on Amazon · Full data on KDPTop

  3. Six Sigma: A Complete Step-by-Step Guide: A Complete Training & Reference Guide for White  book cover by The Council for Six Sigma Certification

    Six Sigma: A Complete Step-by-Step Guide: A Complete Training & Reference Guide for White Belts, Yellow Belts, Green Belts, and Black Belts

    by The Council for Six Sigma Certification

    • List rank#3
    • Price$38.90
    • Rating4.6
    • Reviews720

    View on Amazon · Full data on KDPTop

  4. The ASQ Certified Six Sigma Green Belt Handbook book cover by Roderick A. Munro

    The ASQ Certified Six Sigma Green Belt Handbook

    by Roderick A. Munro

    • List rank#4
    • Price$150
    • Rating4.3
    • Reviews68

    View on Amazon · Full data on KDPTop

  5. Toyota Kata: Managing People for Improvement, Adaptiveness and Superior Results book cover by Mike Rother

    Toyota Kata: Managing People for Improvement, Adaptiveness and Superior Results

    by Mike Rother

    • List rank#5
    • Price$16.76
    • Rating4.6
    • Reviews731

    View on Amazon · Full data on KDPTop

  6. The Toyota Way: 14 Management Principles from the World's Greatest Manufacturer book cover by Jeffrey Liker

    The Toyota Way: 14 Management Principles from the World's Greatest Manufacturer

    by Jeffrey Liker

    • List rank#6
    • Price$14.29
    • Rating4.6
    • Reviews2,247

    View on Amazon · Full data on KDPTop

  7. Lean Six Sigma for Dummies, 4th Edition book cover by Martin Brenig-Jones

    Lean Six Sigma for Dummies, 4th Edition

    by Martin Brenig-Jones

    • List rank#7
    • Price$14.95
    • Rating4.5
    • Reviews118

    View on Amazon · Full data on KDPTop

  8. Six Sigma For Dummies book cover by Bruce Williams

    Six Sigma For Dummies

    by Bruce Williams

    • List rank#8
    • Price$15.69
    • Rating4.4
    • Reviews612

    View on Amazon · Full data on KDPTop

  9. Lean Six Sigma: A Beginner’s Step-by-Step Guide to Implementing Six Sigma Methodology to a book cover by Jeffrey Ries

    Lean Six Sigma: A Beginner’s Step-by-Step Guide to Implementing Six Sigma Methodology to an Enterprise and Manufacturing Process: Lean Guides for Scrum, Kanban, Sprint, DSDM XP & Crystal, Book 5

    by Jeffrey Ries

    • List rank#9
    • Price$8.23
    • Rating3.8
    • Reviews42

    View on Amazon · Full data on KDPTop

  10. Six Sigma Green Belt Exam Prep: Comprehensive Study Guide with Practice Questions to Pass  book cover by Aldrich Lane

    Six Sigma Green Belt Exam Prep: Comprehensive Study Guide with Practice Questions to Pass the CSSGB Exam with Confidence

    by Aldrich Lane

    • List rank#10
    • Price$15.38
    • Reviews-

    View on Amazon · Full data on KDPTop

FAQ

Is Six Sigma a good niche for Amazon KDP?

Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 90 reviews and sells for $27.

How many reviews do you need to rank in Six Sigma?

The median best seller has 90 reviews, and 54% of them have fewer than 100.

What do Six Sigma best sellers cost?

The median price is $27; half of the best sellers are priced between $15.02 and $52.12.

Can new books break into Six Sigma?

2% of the current best sellers were released in the last 90 days.

About this data

Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.