KDP categories · Top KDP authors
Reference (Health, Fitness & Dieting, Books): Amazon KDP category data
Amazon Books Best Sellers data for Reference (Health, Fitness & Dieting, Books), updated Nov 2, 2026: median price $15.65, median 770 reviews, average rating 4.6 and a KDPTop opportunity score of 24/100 (highly competitive).
| Price range (middle 50%) | $11.01 – $21.43 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 8% of the parent category Health, Fitness & Dieting (9,943), one of the easier corners under it.
- Its review barrier is higher than in 82% of Books categories: the median best seller has 770 reviews, so new books need time to build up.
- Only 5% of its best sellers are under 90 days old, fewer than in 75% of Books categories: established titles hold the list.
Top 10 Reference best sellers
-
SAS Survival Handbook, Third Edition: The Ultimate Guide to Surviving Anywhere ― The Classic Survival Handbook, Updated with Urban Survival
- List rank#1
- Price$17.16
- Rating4.8
- Reviews8,377
-
Ultimate SAS Survival Handbook Deluxe Edition: The Classic Guide to Surviving Anywhere
- List rank#2
- Price$31.48
- Rating5.0
- Reviews2
-
Ina May's Guide to Childbirth "Updated With New Material"
by Ina May Gaskin
- List rank#3
- Price$10.48
- Rating4.7
- Reviews9,288
-
She Comes First: The Thinking Man's Guide to Pleasuring a Woman (Kerner, 3)
by Ian Kerner
- List rank#4
- Price$11.67
- Rating4.5
- Reviews8,918
-
The Forager’s Guide to Wild Foods
by Nicole Apelian
- List rank#5
- Price$34.20
- Rating4.7
- Reviews6,009
-
The Obesity Code: Unlocking the Secrets of Weight Loss (Why Intermittent Fasting Is the Key to Controlling Your Weight)
- List rank#6
- Price$11
- Rating4.6
- Reviews38,220
-
-
Taking Charge of Your Fertility: The Definitive Guide to Natural Birth Control and Reproductive Health ― A Landmark 20th Anniversary Edition
by Toni Weschler
- List rank#8
- Price$13.03
- Rating4.8
- Reviews5,963
-
1,500 Stretches: The Complete Guide to Flexibility and Movement
by Hollis Liebman
- List rank#9
- Price$1.99
- Rating4.7
- Reviews465
-
The Plant Paradox: The Hidden Dangers in "Healthy" Foods That Cause Disease and Weight Gain – An NYT Bestselling Medical Nutrition Guide to Longevity and Wellness
- List rank#10
- Price$11.10
- Rating4.4
- Reviews17,214
Same niche in Kindle eBooks: Reference
FAQ
Is Reference a good niche for Amazon KDP?
Its KDPTop opportunity score is 24/100, which makes it highly competitive. The median best seller has 770 reviews and sells for $15.65.
How many reviews do you need to rank in Reference?
The median best seller has 770 reviews, and 12% of them have fewer than 100.
What do Reference best sellers cost?
The median price is $15.65; half of the best sellers are priced between $11.01 and $21.43.
Can new books break into Reference?
5% 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.