KDP categories · Top KDP authors
Sciences & Technology (Japanese, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Sciences & Technology (Japanese, Kindle eBooks), updated Nov 2, 2026: median price $6.33, median 6 reviews, average rating 4.1 and a KDPTop opportunity score of 17/100 (highly competitive).
| Price range (middle 50%) | $3.00 – $9.99 |
|---|---|
| Average rating | 4.1 |
| New releases (90 days) | 0% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Only 0% of its best sellers are under 90 days old, fewer than in 99% of Kindle eBooks categories: established titles hold the list.
- Its median reviews are 30% of the parent category Japanese (20), one of the easier corners under it.
- Its review barrier is lower than in 87% of Kindle eBooks categories: the median best seller has only 6 reviews, so new books can chart with few.
Top 10 Sciences & Technology best sellers
-
宇宙はどう生まれたのか 世界の「起源」がわかる素粒子物理学超入門（マガジンハウス新書） (Japanese Edition)
by 野村泰紀
- List rank#1
- Price$6.42
- Rating4.8
- Reviews24
-
Top Gear Japan (Japanese Edition)
by Top Gear Japan
- List rank#2
- Price$8.44
- Rating4.0
- Reviews2
-
hadounohousoku (Japanese Edition)
by adachiikuro
- List rank#3
- Price$7.80
- Rating4.4
- Reviews1,210
-
マンガでわかる宇宙 (Japanese Edition)
by 石川憲二
- List rank#4
- Price$12.67
- Rating4.1
- Reviews6
-
Motor Drive Note V: DC Motor Speed Control using dsPIC Micro Controller (Japanese Edition)
by Takeshi Furuhashi
- List rank#5
- Price$5
- Rating4.0
- Reviews1
-
Motor Drive Note VI : Speed Control of Brushless Motor Using dsPIC Micro-Compute (Japanese Edition)
by Takeshi Furuhashi
- List rank#6
- Price$7.50
- Rating4.0
- Reviews9
-
Power Electronics Note II: Note on a Lecture with Circuit Construction Practices (Japanese Edition)
by Takeshi Furuhashi
- List rank#7
- Price$5
- Rating3.2
- Reviews4
-
Subete no Katachi: Sugaku no Chizu o Meguru Tabi (Japanese Edition)
by Joel Pena Munoz Jr
- List rank#8
- Price$7.99
- Rating3.0
- Reviews1
-
藤村龍至/TEAM ROUNDABOUTインタビュー集 アーキテクト2.0――2011年以後の建築家像 (Japanese Edition)
by 藤村龍至/TEAMROUNDABOUT
- List rank#9
- Price$12.69
- Rating3.4
- Reviews7
-
教師のための数学 (1) 微分積分学 -月を大きなりんごに変えた数学- (Japanese Edition)
by 松本修一
- List rank#10
- Price$3.82
- Rating5.0
- Reviews4
FAQ
Is Sciences & Technology a good niche for Amazon KDP?
Its KDPTop opportunity score is 17/100, which makes it highly competitive. The median best seller has 6 reviews and sells for $6.33.
How many reviews do you need to rank in Sciences & Technology?
The median best seller has 6 reviews, and 85% of them have fewer than 100.
What do Sciences & Technology best sellers cost?
The median price is $6.33; half of the best sellers are priced between $3.00 and $9.99.
Can new books break into Sciences & Technology?
0% 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.