KDP categories · Top KDP authors
Sandeep Kumar: Amazon KDP author data
As of Nov 6, 2026, Sandeep Kumar has 18 books on Amazon, 12 of them on a best-seller list in the last 30 days (best rank #3), mostly in Six Sigma, Quality Control, Total Quality Management.
| Median price | $29.09 |
|---|---|
| Price range (middle 50%) | $7.99 – $39.30 |
| Median reviews | 4 |
| Total reviews | 47 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 1 |
What stands out
- 67% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
Sandeep Kumar's best-ranked books
-
Six Sigma Yellow Belt: Summary Sheets: Simplifying Your Path to Certification
by Sandeep Kumar
- Price$6.99
- Rating4.7
- Reviews6
-
The Quality Management and Six Sigma Dictionary: An A-to-Z Reference for All 19 ASQ Certifications: CQA, CQE, CMQ/OE, Six Sigma Black Belt, CRE, CQI, CSQE, CSQP, CCQM, CFSQA, CPGP and More
by Sandeep Kumar
- Price$7.99
- Reviews-
-
The Quality Management and Six Sigma Dictionary: An A-to-Z Reference for All 19 ASQ Certifications: CQA, CQE, CMQ/OE, Six Sigma Black Belt, CRE, CQI, CSQE, CSQP, CCQM, CFSQA, CPGP and More
by Sandeep Kumar
- Price$19.99
- Reviews-
-
Mastering Your Invisalign Marketing: Where to start, what to do next and what actually works
by Sandeep Kumar
- Price$7.99
- Rating5.0
- Reviews1
- Published2026-09
-
Certified Quality Engineer (CQE): Summary Sheets: Simplifying Your Path to Certification
by Sandeep Kumar
- Price$38.58
- Rating5.0
- Reviews1
-
Mastering Your Invisalign Business
by Sandeep Kumar
- Price$4.99
- Rating4.7
- Reviews9
-
Certified Construction Quality Manager (CCQM): Summary Sheets: Simplifying Your Path to Certification
by Sandeep Kumar
- Price$38.18
- Rating5.0
- Reviews1
-
Six Sigma Yellow Belt: Summary Sheets: Simplifying Your Path to Certification
by Sandeep Kumar
- Price$19.99
- Rating4.7
- Reviews6
-
Lean Six Sigma Green Belt: Summary Sheets: Simplifying Your Path to Certification
by Sandeep Kumar
- Price$39.99
- Rating5.0
- Reviews4
-
Lean Six Sigma Black Belt: Summary Sheets: Simplifying Your Path to Certification
by Sandeep Kumar
- Price$39.40
- Rating4.4
- Reviews6
Main categories
FAQ
How many books does Sandeep Kumar have on Amazon?
KDPTop tracks 18 of their books; 12 made an Amazon list in the last 30 days.
Which categories does Sandeep Kumar publish in?
Their books chart most often in Six Sigma, Quality Control, Total Quality Management.
How does Sandeep Kumar price their books?
The median price is $29.09; half of the books cost $7.99–$39.30.
Has Sandeep Kumar released new books recently?
2 new books in the last 30 days, 1 of which reached a Best Sellers list.
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.