KDP categories · Top KDP authors
Biographies, Diaries & True Accounts (Portuguese, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Biographies, Diaries & True Accounts (Portuguese, Kindle eBooks), updated Nov 2, 2026: median price $7.17, median 274 reviews, average rating 4.7 and a KDPTop opportunity score of 19/100 (highly competitive).
| Price range (middle 50%) | $4.61 – $8.54 |
|---|---|
| Average rating | 4.7 |
| New releases (90 days) | 16% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 8% of the parent category Portuguese (3,458), one of the easier corners under it.
- 16% of its best sellers came out in the last 90 days, more than in 78% of Kindle eBooks categories: readers here keep buying new titles.
- Its review barrier is higher than in 72% of Kindle eBooks categories: the median best seller has 274 reviews, so new books need time to build up.
Top 10 Biographies, Diaries & True Accounts best sellers
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A república das milícias: Dos esquadrões da morte à era Bolsonaro (Portuguese Edition)
by Bruno Paes Manso
- List rank#1
- Price$10.99
- Rating4.8
- Reviews2,733
-
Jesus: O homem que dividiu o tempo (Portuguese Edition)
by Leandro Karnal
- List rank#2
- Price$8.26
- Rating5.0
- Reviews4
-
Janonismo Cultural: O uso das redes sociais e a batalha pela democracia no Brasil (Portuguese Edition)
by André Janones
- List rank#3
- Price$6.99
- Rating4.7
- Reviews77
-
Coisa de rico: A vida dos endinheirados brasileiros (Portuguese Edition)
by Michel Alcoforado
- List rank#4
- Price$7.99
- Rating4.5
- Reviews10,575
-
Estranhos: Vestígios de um casamento (Portuguese Edition)
by Belle Burden
- List rank#5
- Price$7.34
- Rating4.5
- Reviews983
-
-
O Jogo da Vida: e Como Jogá-lo (Portuguese Edition)
by Florence Scovel Shinn
- List rank#7
- Price$2.99
- Rating4.9
- Reviews57
-
Lula, volume 1: Biografia (Portuguese Edition)
by Fernando Morais
- List rank#8
- Price$3.99
- Rating4.9
- Reviews3,986
-
Análise (Portuguese Edition)
by Vera Iaconelli
- List rank#9
- Price$2.99
- Rating4.7
- Reviews3,422
-
Brazil: A Short History of Brazil in Portuguese: C1 Portuguese Reader (Learn Languages: Short Histories Livro 15) (Portuguese Edition)
by Maria Gonçalves
- List rank#10
- Price$2.99
- Rating5.0
- Reviews1
FAQ
Is Biographies, Diaries & True Accounts a good niche for Amazon KDP?
Its KDPTop opportunity score is 19/100, which makes it highly competitive. The median best seller has 274 reviews and sells for $7.17.
How many reviews do you need to rank in Biographies, Diaries & True Accounts?
The median best seller has 274 reviews, and 35% of them have fewer than 100.
What do Biographies, Diaries & True Accounts best sellers cost?
The median price is $7.17; half of the best sellers are priced between $4.61 and $8.54.
Can new books break into Biographies, Diaries & True Accounts?
16% of the current best sellers were released in the last 90 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.