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Alex Caldwell: Amazon KDP author data

As of Nov 6, 2026, Alex Caldwell has 5 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #2), mostly in Skills, Analytic Philosophy, Epistemology.

5Books on Amazon
4Listed in 30 days
4.5Average rating
Median price$2.99
Price range (middle 50%)$2.99 – $15.78
Median reviews180
Total reviews1,178
New books (30 days)0
Breakout books (30 days)0

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What stands out

  • 80% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $2.99, 70% below the median of their main category, Skills.

Alex Caldwell's best-ranked books

  1. The Real-World Blueprint to Critical Thinking, Logic & Decision Making (all-in-1): 100+ Mo book cover by Alex Caldwell

    The Real-World Blueprint to Critical Thinking, Logic & Decision Making (all-in-1): 100+ Modern Examples & Strategies to Sharpen Your Thinking, Outsmart Bias, and Make Smarter Decisions

    by Alex Caldwell

    • Price$2.99
    • Rating4.5
    • Reviews180

    View on Amazon · Full data on KDPTop

  2. The Ultimate Dark Psychology Blueprint (All-in-1): 150+ Practical Techniques to Protect Ag book cover by Alex Caldwell

    The Ultimate Dark Psychology Blueprint (All-in-1): 150+ Practical Techniques to Protect Against Mind Control, Lies and Manipulation. Master the Art of ... and Persuasion (Critical Thinking Book 2)

    by Alex Caldwell

    • Price$2.99
    • Rating4.4
    • Reviews403

    View on Amazon · Full data on KDPTop

  3. The Real-World Blueprint to Critical Thinking, Logic & Decision Making (all-in-1): 100+ Mo book cover by Alex Caldwell

    The Real-World Blueprint to Critical Thinking, Logic & Decision Making (all-in-1): 100+ Modern Examples & Strategies to Sharpen Your Thinking, Outsmart Bias, and Make Smarter Decisions

    by Alex Caldwell

    • Price$19.99
    • Rating4.5
    • Reviews180

    View on Amazon · Full data on KDPTop

  4. The Ultimate Dark Psychology Blueprint (All-in-1): 150+ Practical Techniques to Protect Ag book cover by Alex Caldwell

    The Ultimate Dark Psychology Blueprint (All-in-1): 150+ Practical Techniques to Protect Against Mind Control, Lies and Manipulation. Master the Art of Influence and Persuasion (Critical Thinking)

    by Alex Caldwell

    • Price$15.78
    • Rating4.4
    • Reviews403

    View on Amazon · Full data on KDPTop

  5. The Dark Psychology, Manipulation & Critical Thinking Bible (2 in 1): Discover How to Read book cover by Alex Caldwell

    The Dark Psychology, Manipulation & Critical Thinking Bible (2 in 1): Discover How to Read People, Detect Lies + Master Body Language & Logical Thinking to Make Smarter Decisions

    by Alex Caldwell

    • Price$1.99
    • Rating4.6
    • Reviews12
    • Published2026-05

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does Alex Caldwell have on Amazon?

KDPTop tracks 5 of their books; 4 made an Amazon list in the last 30 days.

Which categories does Alex Caldwell publish in?

Their books chart most often in Skills, Analytic Philosophy, Epistemology.

How does Alex Caldwell price their books?

The median price is $2.99; half of the books cost $2.99–$15.78.

Has Alex Caldwell released new books recently?

0 new books in the last 30 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.