KDP categories · Top KDP authors
THE OBSERVER: Amazon KDP author data
As of Nov 6, 2026, THE OBSERVER has 8 books on Amazon, 8 of them on a best-seller list in the last 30 days (best rank #59), mostly in Controversial Knowledge, Diversity & Multiculturalism, Human Geography.
| Median price | $3.99 |
|---|---|
| Price range (middle 50%) | $3.99 – $4.99 |
| Median reviews | 1 |
| Total reviews | 1 |
| New books (30 days) | 6 |
| Breakout books (30 days) | 0 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $3.99, 19% below the median of their main category, Controversial Knowledge.
- 6 new books in the last 30 days.
THE OBSERVER's best-ranked books
-
The Sovereign Individual : A Lifelong Journey of Self-Mastery, Systems Thinking, and Human Freedom
by THE OBSERVER
- Price$3.99
- Reviews-
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Tongue Twisters: 500+ Verbal Challenges : Master Speed, Pronunciation, Rhythm, and Verbal Precision
by THE OBSERVER
- Price$3.99
- Rating1.0
- Reviews1
-
Psychological Attacks : 500 Psychological Tactics: How to Recognize, Understand, Defend Against, and Counter Them
by THE OBSERVER
- Price$6.99
- Reviews-
-
THE EVIL EYE : Envy, Attention, Belief, and the Ancient Fear of Being Seen
by THE OBSERVER
- Price$5.99
- Reviews-
-
The Human Planet : How Geography Built Civilization—and Why It Still Matters
by THE OBSERVER
- Price$3.99
- Reviews-
-
BASICS OF SIGMA MALE : The Psychology of Independence, Quiet Strength, and Self-Mastery (MARATHA DYNAMICS Book 1)
by THE OBSERVER
- Price$0
- Reviews-
-
THE BRAIN WORKOUT: 200+ Exercises to Train Memory, Focus, Speed, Logic & Mental Flexibility
by THE OBSERVER
- Price$3.99
- Reviews-
- Published2026-09
-
LEADERSHIP LESSONS NO ONE TEACHES YOU : The Hidden Development of Leadership
by THE OBSERVER
- Price$3.99
- Reviews-
Main categories
FAQ
How many books does THE OBSERVER have on Amazon?
KDPTop tracks 8 of their books; 8 made an Amazon list in the last 30 days.
Which categories does THE OBSERVER publish in?
Their books chart most often in Controversial Knowledge, Diversity & Multiculturalism, Human Geography.
How does THE OBSERVER price their books?
The median price is $3.99; half of the books cost $3.99–$4.99.
Has THE OBSERVER released new books recently?
6 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.