KDP categories · Top KDP authors
A. Duller: Amazon KDP author data
As of Nov 6, 2026, A. Duller has 31 books on Amazon, 25 of them on a best-seller list in the last 30 days (best rank #3), mostly in Crop Science, Tropical Agriculture, Flowers.
| Median price | $4.99 |
|---|---|
| Price range (middle 50%) | $4.99 – $9.99 |
| Median reviews | 1 |
| Total reviews | 16 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 81% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $4.99, 79% below the median of their main category, Crop Science.
A. Duller's best-ranked books
-
Guide to Growing Passion Fruit: Learn how to cultivate great Passion Fruit
by A. Duller
- Price$4.99
- Reviews-
-
Guide to Growing Feijoa: Learn how to grow excellent Feijoa
by A. Duller
- Price$4.99
- Reviews-
-
Guide to Growing Coconut: Learn how to grow excellent Coconut
by A. Duller
- Price$4.99
- Rating3.0
- Reviews1
-
Guide to Growing Carnivorous Plants: Learn to Grow Carnivorous Plants Easily
by A. Duller
- Price$3.99
- Reviews-
- Published2024-12
-
Guide to Growing Bananas: Learn how to grow great bananas
by A. Duller
- Price$4.99
- Rating2.0
- Reviews1
-
Guide to Growing Dahlias: Learn what to do well to cultivate enchanting Dahlias
by A. Duller
- Price$4.99
- Rating3.0
- Reviews1
-
Guide to Growing Onion: Learn how to grow excellent Onion
by A. Duller
- Price$4.99
- Reviews-
-
Guide to Growing Wheat: Learn how to grow excellent Wheat
by A. Duller
- Price$9.99
- Reviews-
-
Guide to Growing Mango: Learn how to grow great Mangoes
by A. Duller
- Price$4.99
- Reviews-
-
Guide to Growing Sorghum: Learn how to grow excellent Sorghum
by A. Duller
- Price$10.90
- Rating2.5
- Reviews2
Main categories
FAQ
How many books does A. Duller have on Amazon?
KDPTop tracks 31 of their books; 25 made an Amazon list in the last 30 days.
Which categories does A. Duller publish in?
Their books chart most often in Crop Science, Tropical Agriculture, Flowers.
How does A. Duller price their books?
The median price is $4.99; half of the books cost $4.99–$9.99.
Has A. Duller 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.