KDP categories · Top KDP authors
Relationships (Self-Help, Books): Amazon KDP category data
Amazon Books Best Sellers data for Relationships (Self-Help, Books), updated Nov 2, 2026: median price $10.99, median 5,980 reviews, average rating 4.6 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $9.97 – $15.36 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 8% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its review barrier is higher than in 97% of Books categories: the median best seller has 5,980 reviews, so new books need time to build up.
- At $10.99 its median price is below 87% of Books categories, so it is a volume game.
- Its median reviews are 50% of the parent category Self-Help (12,077), one of the easier corners under it.
Top 10 Relationships best sellers
-
How to Win Friends & Influence People
- List rank#1
- Price$15.69
- Rating4.7
- Reviews101,798
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Making Peace with What I Can’t Control: Find Relief from the Exhaustion of Overthinking, Trying to Fix Others, and Wanting to Figure It All Out
- List rank#3
- Price$19.98
- Rating4.8
- Reviews206
-
Adult Children of Emotionally Immature Parents: How to Heal from Distant, Rejecting, or Self-Involved Parents
- List rank#4
- Price$10.21
- Rating4.8
- Reviews28,580
-
Tuesdays with Morrie: An Old Man, a Young Man, and Life's Greatest Lesson, 25th Anniversary Edition
by Mitch Albom
- List rank#5
- Price$8.95
- Rating4.8
- Reviews50,262
-
The Seven Principles for Making Marriage Work: A Practical Guide from the Country's Foremost Relationship Expert
- List rank#6
- Price$8.66
- Rating4.7
- Reviews15,699
-
Attached: The New Science of Adult Attachment and How It Can Help You Find--and Keep--Love
by Amir Levine
- List rank#7
- Price$9.01
- Rating4.7
- Reviews23,894
-
Unoffendable Heart: Breaking Free from the Cycle of Offense to Live in Freedom, Love, and Forgiveness
- List rank#8
- Price$15.38
- Rating5.0
- Reviews189
-
The 5 Love Languages®: The Secret to Love that Lasts
by Gary Chapman
- List rank#9
- Price$7.12
- Rating4.8
- Reviews92,496
-
Good Inside: A Guide to Becoming the Parent You Want to Be
- List rank#10
- Price$15.79
- Rating4.7
- Reviews4,742
Subcategories
FAQ
Is Relationships a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 5,980 reviews and sells for $10.99.
How many reviews do you need to rank in Relationships?
The median best seller has 5,980 reviews, and 5% of them have fewer than 100.
What do Relationships best sellers cost?
The median price is $10.99; half of the best sellers are priced between $9.97 and $15.36.
Can new books break into Relationships?
8% 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.