KDP categories · Top KDP authors
Raj Haldar: Amazon KDP author data
As of Nov 6, 2026, Raj Haldar has 9 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #6), mostly in Reading & Writing, Vocabulary & Spelling, Grammar.
| Median price | $8.99 |
|---|---|
| Price range (middle 50%) | $6.15 – $10.59 |
| Median reviews | 138 |
| Total reviews | 24,543 |
| New listings (30 days, incl. new editions) | 2 |
| Breakout books (30 days) | 1 |
What stands out
- 67% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $8.99, 48% above the median of their main category, Reading & Writing.
Raj Haldar's best-ranked books
-
P Is for Pterodactyl: The Worst Alphabet Book Ever (The Worst Book Ever)
by Raj Haldar
- Price$6.15
- Rating4.8
- Reviews10,937
-
No Reading Allowed: The WORST Read-Aloud Book Ever (The Worst Book Ever)
by Raj Haldar
- Price$6.15
- Rating4.7
- Reviews1,184
-
P Is for Pterodactyl: The Worst Alphabet Book Ever (The Worst Book Ever)
by Raj Haldar
- Price$8.99
- Rating4.8
- Reviews10,937
- Published2018-11
-
No Reading Allowed: The WORST Read-Aloud Book Ever (The Worst Book Ever)
by Raj Haldar
- Price$15.76
- Rating4.7
- Reviews1,184
-
What Rhymes with Pterodactyl?: The Worst Rhyming Book Ever (The Worst Book Ever)
by Raj Haldar
- Price$6.15
- Rating4.5
- Reviews27
-
This Book Is Banned: A Delightfully Silly Picture Book From the Author of P Is for Pterodactyl
by Raj Haldar
- Price$10.59
- Rating4.8
- Reviews138
-
P Is for Pterodactyl Coloring Book: The Worst Coloring Book Ever
by Raj Haldar
- Price$9.99
- Rating4.7
- Reviews98
-
What Rhymes with Pterodactyl?: The Worst Rhyming Book Ever (The Worst Book Ever)
by Raj Haldar
- Price$17.99
- Rating4.5
- Reviews27
-
Word Travelers and the Big Chase in Paris: A Vocabulary-Building Adventure for Kids 8-10
by Raj Haldar
- Price$5.99
- Rating4.4
- Reviews13
Main categories
FAQ
How many books does Raj Haldar have on Amazon?
KDPTop tracks 9 of their books; 6 made an Amazon list in the last 30 days.
Which categories does Raj Haldar publish in?
Their books chart most often in Reading & Writing, Vocabulary & Spelling, Grammar.
How does Raj Haldar price their books?
The median price is $8.99; half of the books cost $6.15–$10.59.
Has Raj Haldar released new books recently?
2 new books in the last 30 days, 1 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.