KDP categories · Top KDP authors
Grammar (Reading & Writing, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Grammar (Reading & Writing, Kindle eBooks), updated Nov 2, 2026: median price $6.99, median 66 reviews, average rating 4.6 and a KDPTop opportunity score of 20/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $9.99 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Only 3% of its best sellers are under 90 days old, fewer than in 88% of Kindle eBooks categories: established titles hold the list.
Top 10 Grammar best sellers
-
Everything You Need to Ace English Language Arts in One Big Fat Notebook, 2nd Edition: The Complete Middle School Study Guide
- List rank#1
- Price$6.99
- Rating4.8
- Reviews11,633
-
The Perfect English Grammar Workbook: Simple Rules and Quizzes to Master Today's English
by Lisa McLendon
- List rank#2
- Price$11.99
- Rating4.5
- Reviews2,815
-
Once Upon a Word: A Word-Origin Dictionary for Kids—Building Vocabulary Through Etymology, Definitions & Stories
by Jess Zafarris
- List rank#3
- Price$2.99
- Rating4.7
- Reviews796
-
The Very Clever Consonant Blends (Phonics Read-Alouds Series)
by Yvette Manns
- List rank#4
- Price$9.99
- Rating4.7
- Reviews47
-
The Not-So-Wild Closed Syllable Exceptions (Phonics Read-Alouds Series)
by Yvette Manns
- List rank#5
- Price$9.99
- Rating4.6
- Reviews30
-
The Very Lucky Syllable Types (Phonics Read-Alouds Series)
by Yvette Manns
- List rank#6
- Price$9.99
- Rating4.8
- Reviews47
-
-
Middle School Language Arts: Grammar and Mechanics: Master the Building Blocks of Great Writing: Your Essential Guide to Middle School Grammar and Mechanics!
by Linda Wrighton
- List rank#8
- Price$1.49
- Reviews-
-
Middle School Language Arts: Vocabulary Acquisition: Empowering Middle School Students to Master the English Language
by Linda Wrighton
- List rank#9
- Price$1.49
- Reviews-
-
Middle School Language Arts: Sentence Structures: Mastering the Art of Writing with Engaging Sentence Structure Lessons for Middle School Students
by Linda Wrighton
- List rank#10
- Price$1.49
- Reviews-
Same niche in Books: Grammar
FAQ
Is Grammar a good niche for Amazon KDP?
Its KDPTop opportunity score is 20/100, which makes it highly competitive. The median best seller has 66 reviews and sells for $6.99.
How many reviews do you need to rank in Grammar?
The median best seller has 66 reviews, and 60% of them have fewer than 100.
What do Grammar best sellers cost?
The median price is $6.99; half of the best sellers are priced between $4.99 and $9.99.
Can new books break into Grammar?
3% 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.