KDP categories · Top KDP authors
Pedro Portugal: Amazon KDP author data
As of Nov 6, 2026, Pedro Portugal has 3 books on Amazon, 3 of them on a best-seller list in the last 30 days (best rank #2), mostly in Machinery, Engineering & Transportation, Mechanical.
| Median price | $28.12 |
|---|---|
| Price range (middle 50%) | $25.55 – $30.68 |
| Median reviews | 4 |
| Total reviews | 13 |
| New books (30 days) | 3 |
| Breakout books (30 days) | 3 |
What stands out
- Median price $28.12, 41% above the median of their main category, Machinery.
- 3 new books in the last 30 days, 3 of them broke into a Best Sellers list.
Pedro Portugal's best-ranked books
-
Practical Mechanics For Inventors
by Pedro Portugal
- Price$22.99
- Rating2.9
- Reviews4
-
Practical Mechanics For Inventors
by Pedro Portugal
- Price$0
- Rating3.4
- Reviews6
- Published2026-10
-
Practical Mechanics For Inventors
by Pedro Portugal
- Price$34.99
- Rating3.1
- Reviews5
Main categories
FAQ
How many books does Pedro Portugal have on Amazon?
KDPTop tracks 3 of their books; 3 made an Amazon list in the last 30 days.
Which categories does Pedro Portugal publish in?
Their books chart most often in Machinery, Engineering & Transportation, Mechanical.
How does Pedro Portugal price their books?
The median price is $28.12; half of the books cost $25.55–$30.68.
Has Pedro Portugal released new books recently?
3 new books in the last 30 days, 3 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.