KDP categories · Top KDP authors
Emil Popa: Amazon KDP author data
As of Nov 6, 2026, Emil Popa has 72 books on Amazon, 17 of them on a best-seller list in the last 30 days (best rank #3), mostly in Production & Operations, Quality Control & Management, Lean.
| Median price | $6.99 |
|---|---|
| Price range (middle 50%) | $4.99 – $9 |
| Median reviews | 2 |
| Total reviews | 4 |
| New listings (30 days, incl. new editions) | 11 |
| Breakout books (30 days) | 6 |
What stands out
- Median price $6.99, 46% below the median of their main category, Production & Operations.
- 11 new listings in the last 30 days (new editions included), 6 of them broke into a Best Sellers list.
Emil Popa's best-ranked books
-
Value Stream Mapping 2.0: From Paper Maps to AI-Driven Flow Intelligence
by Emil Popa
- Price$6.99
- Reviews-
- Published2026-09
-
PPAP:: The Complete Practical Master Guide: A Comprehensive Practical Guide to PPAP, PFMEA, Control Plans, MSA, Cpk Studies & Supplier Approval Workflow) (Lean Manufacturing)
by Emil Popa
- Price$9.99
- Reviews-
-
Leather Craft: The Complete Guide to Leatherworking
by Emil Popa
- Price$9
- Rating3.0
- Reviews2
-
AI-Powered Kaizen: A Continuous Improvement Operating System for the AI Era (The Lean AI Series)
by Emil Popa
- Price$4.99
- Reviews-
- Published2026-08
-
Digital Poka-Yoke: AI-Powered Mistake-Proofing for the Modern Factory (The Lean AI Series)
by Emil Popa
- Price$4.99
- Reviews-
-
Value Stream Mapping: How to Map, Redesign, and Cut Manufacturing Lead Time by Up to 60% (Lean Manufacturing)
by Emil Popa
- Price$7.99
- Reviews-
- Published2026-07
-
KPI Mastery: The Practical Guide to Measuring What Matters: Practical Strategies For Business Growth (KPI Performance Book 1)
by Emil Popa
- Price$0.99
- Rating5.0
- Reviews2
- Published2026-05
-
SMED: Single-Minute Exchange of Die/The Complete Guide to Rapid Changeover in Lean Manufacturing
by Emil Popa
- Price$1
- Reviews-
- Published2026-04
-
Gemba Walk: The Complete Field Guide: How to Lead with Your Feet, See with Fresh Eyes, and Transform Your Organization from the Ground Up (Lean Manufacturing)
by Emil Popa
- Price$7.99
- Reviews-
-
Digital Lean: Mapping Value, Flow, and Standard Work in the Digital Enterprise (The Lean AI Series)
by Emil Popa
- Price$4.99
- Reviews-
Main categories
FAQ
How many books does Emil Popa have on Amazon?
KDPTop tracks 72 of their books; 17 made an Amazon list in the last 30 days.
Which categories does Emil Popa publish in?
Their books chart most often in Production & Operations, Quality Control & Management, Lean.
How does Emil Popa price their books?
The median price is $6.99; half of the books cost $4.99–$9.
Has Emil Popa released new books recently?
11 new books in the last 30 days, 6 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.