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Ervin S Wright: Amazon KDP author data

As of Nov 6, 2026, Ervin S Wright has 7 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #19), mostly in Certification, Quality Control, Industries.

7Books on Amazon
4Listed in 30 days
5.0Average rating
Median price$38
Price range (middle 50%)$31.75 – $38.50
Median reviews4
Total reviews9
New books (30 days)3
Breakout books (30 days)3

View on Amazon

What stands out

  • 57% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • 3 new books in the last 30 days, 3 of them broke into a Best Sellers list.

Ervin S Wright's best-ranked books

  1. ITIL 5 Foundation Without the Fog: Your Friendly Guide to Passing the 2026 Exam - 100 Refe book cover by Ervin S Wright

    ITIL 5 Foundation Without the Fog: Your Friendly Guide to Passing the 2026 Exam - 100 Referenced Practice Questions, the 6C AI Model, and All 34 Practices in Plain English

    by Ervin S Wright

    • Price$12.99
    • Rating5.0
    • Reviews4
    • Published2026-09

    View on Amazon · Full data on KDPTop

  2. Testing, Simplified: The ISTQB Foundation Without the Fog: Your Friendly Guide to Passing book cover by Ervin S Wright

    Testing, Simplified: The ISTQB Foundation Without the Fog: Your Friendly Guide to Passing the Exam and Applying It in Real Life (v4.0 Syllabus)

    by Ervin S Wright

    • Price$38
    • Rating5.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  3. ITIL 5 Foundation Without the Fog: Your Friendly Guide to Passing the 2026 Exam - 100 Refe book cover by Ervin S Wright

    ITIL 5 Foundation Without the Fog: Your Friendly Guide to Passing the 2026 Exam - 100 Referenced Practice Questions, the 6C AI Model, and All 34 Practices in Plain English

    by Ervin S Wright

    • Price$38
    • Rating5.0
    • Reviews4

    View on Amazon · Full data on KDPTop

  4. Testing, Simplified: The ISTQB Advanced Test Analyst Without the Fog: An Independent CTAL- book cover by Ervin S Wright

    Testing, Simplified: The ISTQB Advanced Test Analyst Without the Fog: An Independent CTAL-TA v4.0 Study Guide with 100 Practice Questions and a Timed Mock Exam

    by Ervin S Wright

    • Price$39.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  5. Testing, Simplified: The ISTQB Advanced Test Analyst Without the Fog: An Independent CTAL- book cover by Ervin S Wright

    Testing, Simplified: The ISTQB Advanced Test Analyst Without the Fog: An Independent CTAL-TA v4.0 Study Guide with 100 Practice Questions and a Timed Mock Exam

    by Ervin S Wright

    • Price$12.99
    • Reviews-
    • Published2026-08

    View on Amazon · Full data on KDPTop

  6. Testing, Simplified: The ISTQB Foundation Without the Fog: Your Friendly Guide to Passing book cover by Ervin S Wright

    Testing, Simplified: The ISTQB Foundation Without the Fog: Your Friendly Guide to Passing the Exam and Applying It in Real Life (v4.0 Syllabus) — Second Edition

    by Ervin S Wright

    • Price$0
    • Reviews-
    • Published2026-03

    View on Amazon · Full data on KDPTop

  7. PRINCE2 7 Foundation Without the Fog: The Plain English Study Guide 2026 - Complete People book cover by Ervin S Wright

    PRINCE2 7 Foundation Without the Fog: The Plain English Study Guide 2026 - Complete PeopleCert Syllabus, 346 Practice Questions, Two Full Mock Exams

    by Ervin S Wright

    • Price$0
    • Reviews-
    • Published2026-10

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Ervin S Wright have on Amazon?

KDPTop tracks 7 of their books; 4 made an Amazon list in the last 30 days.

Which categories does Ervin S Wright publish in?

Their books chart most often in Certification, Quality Control, Industries.

How does Ervin S Wright price their books?

The median price is $38; half of the books cost $31.75–$38.50.

Has Ervin S Wright released new books recently?

3 new books in the last 30 days, 3 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.