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Study Aids & Revision Guides (Japanese, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Study Aids & Revision Guides (Japanese, Kindle eBooks), updated Nov 2, 2026: median price $4.33, median 2 reviews, average rating 4.1 and a KDPTop opportunity score of 18/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $8.73 |
|---|---|
| Average rating | 4.1 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 12% of the parent category Japanese (20), one of the easier corners under it.
- Its review barrier is lower than in 93% of Kindle eBooks categories: the median best seller has only 2 reviews, so new books can chart with few.
- At $4.33 its median price is below 93% of Kindle eBooks categories, so it is a volume game.
Top 10 Study Aids & Revision Guides best sellers
-
Learn Japanese with 120 Short Stories - 4 Books in 1: A Story-Based Reading Method for Adults with a Step-by-Step 120-Day Action Plan to Progress from ... in Just 30 Minutes a Day (Japanese Edition)
- List rank#1
- Price$0.99
- Rating5.0
- Reviews1
-
Foundations of Japanese Grammar Beginner Handbook: Essential Lessons for English Speakers Learning Japanese Workbooks for the Foundations of Japanese Grammar (Japanese Edition)
by Yoko Saga
- List rank#2
- Price$5.98
- Rating5.0
- Reviews1
-
po-zuaideaandomoshanitukaeruirasutosukiruappunotamenoenorenshuuno-tosangatugouamazonban enorenshuuchoushiri-zu (Japanese Edition)
by hide channel
- List rank#3
- Price$9.99
- Rating4.4
- Reviews28
-
nihongo renshucho: Japanese Practice Book (Japanese Edition)
by CLJ Language
- List rank#4
- Price$6.91
- Rating5.0
- Reviews1
-
Can be used for pose ideas and copying Painting practice for improving illustration skills February issue Drawing exercise book series (Japanese Edition)
by hide channel
- List rank#5
- Price$9.08
- Rating3.7
- Reviews55
-
Japanese Stories for Advanced Learners: A Challenging Collection of Thirty Modern Readings for Stronger Comprehension Vocabulary and Fluency The Rising Sun Reading Journey (Japanese Edition)
- List rank#6
- Price$3.99
- Reviews-
-
potential form jlpt n4 grammar picture book: Japanese Grammar Practice for JLPT N4 (A Fun Japanese Grammar Picture Book) (Japanese Edition)
by asoka japanese
- List rank#7
- Price$4.99
- Reviews-
-
JLPT N5 Practice Test: JLPT N5 Practice Test (Japanese Edition)
by JLPT Mock Master
- List rank#8
- Price$4.99
- Rating4.2
- Reviews3
-
30 Japanese Short Stories for Upper-Intermediate Learners: Expand Your Vocabulary Improve Reading Comprehension and Gain Confidence with Natural Reading ... Language Learning) (Japanese Edition)
- List rank#9
- Price$3.99
- Rating2.0
- Reviews1
-
日本留学試験（EJU）実戦問題集 理科 化学 Vol.1――名校志向塾留学生大学受験叢書 (名校教育グループ) (Japanese Edition)
by 名校志向塾
- List rank#10
- Price$10.92
- Rating4.7
- Reviews12
FAQ
Is Study Aids & Revision Guides a good niche for Amazon KDP?
Its KDPTop opportunity score is 18/100, which makes it highly competitive. The median best seller has 2 reviews and sells for $4.33.
How many reviews do you need to rank in Study Aids & Revision Guides?
The median best seller has 2 reviews, and 98% of them have fewer than 100.
What do Study Aids & Revision Guides best sellers cost?
The median price is $4.33; half of the best sellers are priced between $2.99 and $8.73.
Can new books break into Study Aids & Revision Guides?
6% 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.