KDP categories · Top KDP authors
David J Wallin: Amazon KDP author data
As of Nov 6, 2026, David J Wallin has 3 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #10), mostly in Psychotherapy, TA & NLP, Clinical Psychology, Developmental Psychology.
| Median price | $36.90 |
|---|---|
| Price range (middle 50%) | $28.24 – $41.94 |
| Median reviews | 555 |
| Total reviews | 1,665 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- Median price $36.90, 148% above the median of their main category, Psychotherapy, TA & NLP.
David J Wallin's best-ranked books
-
Attachment in Psychotherapy
by David J Wallin
- Price$19.59
- Rating4.7
- Reviews555
- Published2017-07
-
Attachment in Psychotherapy
by David J Wallin
- Price$46.98
- Rating4.7
- Reviews555
-
Attachment in Psychotherapy
by David J Wallin
- Price$36.90
- Rating4.7
- Reviews555
Main categories
FAQ
How many books does David J Wallin have on Amazon?
KDPTop tracks 3 of their books; 3 made an Amazon list in the last 30 days.
Which categories does David J Wallin publish in?
Their books chart most often in Psychotherapy, TA & NLP, Clinical Psychology, Developmental Psychology.
How does David J Wallin price their books?
The median price is $36.90; half of the books cost $28.24–$41.94.
Has David J Wallin 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.