KDP categories · Top KDP authors
Gulshan Singh: Amazon KDP author data
As of Nov 6, 2026, Gulshan Singh has 7 books on Amazon, 7 of them on a best-seller list in the last 30 days (best rank #57), mostly in Experimental Psychology, Curiosities & Wonders, Trivia & Fun Facts.
| Median price | $6.99 |
|---|---|
| Price range (middle 50%) | $5.49 – $8.49 |
| Median reviews | 1 |
| Total reviews | 2 |
| New books (30 days) | 7 |
| Breakout books (30 days) | 2 |
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 $6.99, 59% below the median of their main category, Experimental Psychology.
- 7 new books in the last 30 days, 2 of them broke into a Best Sellers list.
Gulshan Singh's best-ranked books
-
100 Psychological Experiments That Went Too Far: The Darkest Experiments in the History of Human Behavior
by Gulshan Singh
- Price$14.99
- Reviews-
-
THE 13 UNSOLVED CASE FILES: 13 Murder Mysteries. Hundreds of Clues. Can You Catch Every Killer?
by Gulshan Singh
- Price$4.99
- Reviews-
- Published2026-09
-
The Unsolved History Files: 100 Historical Mysteries That Still Have No Definitive Answer
by Gulshan Singh
- Price$4.99
- Rating3.0
- Reviews1
-
The Dark Side of History: 100 Shocking True Stories of Forgotten Disasters, Bizarre Laws, Disturbing Medical Practices & Disappearances They Never Taught You in School
by Gulshan Singh
- Price$9.99
- Rating5.0
- Reviews1
-
The Lost Treasures Files: 100 Legendary Treasures History Never Found
by Gulshan Singh
- Price$6.99
- Reviews-
- Published2026-09
-
The Experiment Continues: 100 More Psychological Experiments That Went Too Far| Book Two in the Experiments That Went Too Far series
by Gulshan Singh
- Price$6.99
- Reviews-
-
100 Psychological Experiments That Went Too Far: The Darkest Experiments in the History of Human Behavior
by Gulshan Singh
- Price$5.99
- Reviews-
Main categories
FAQ
How many books does Gulshan Singh have on Amazon?
KDPTop tracks 7 of their books; 7 made an Amazon list in the last 30 days.
Which categories does Gulshan Singh publish in?
Their books chart most often in Experimental Psychology, Curiosities & Wonders, Trivia & Fun Facts.
How does Gulshan Singh price their books?
The median price is $6.99; half of the books cost $5.49–$8.49.
Has Gulshan Singh released new books recently?
7 new books in the last 30 days, 2 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.