KDP categories · Top KDP authors
Ruby Calloway: Amazon KDP author data
As of Nov 6, 2026, Ruby Calloway has 8 books on Amazon, 8 of them on a best-seller list in the last 30 days (best rank #2), mostly in Social Situations, Maturing, Personal Health.
| Median price | $11.49 |
|---|---|
| Price range (middle 50%) | $7.99 – $14.99 |
| Median reviews | 76 |
| Total reviews | 672 |
| New books (30 days) | 6 |
| Breakout books (30 days) | 3 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $11.49, 92% above the median of their main category, Social Situations.
- 6 new books in the last 30 days, 3 of them broke into a Best Sellers list.
Ruby Calloway's best-ranked books
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The Ultimate Puberty Survival Guide for Tween Boys (Puberty: Books for Boys 8–13 Book 1)
by Ruby Calloway
- Price$7.99
- Rating4.7
- Reviews30
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The Ultimate Puberty Survival Guide for Tween Girls: How To Handle Body Changes, Big Feelings, Friendships, Social Skills, And Everything In Between (Puberty: Books for Girls 8–12 Book 1)
by Ruby Calloway
- Price$7.99
- Rating4.7
- Reviews155
-
The Ultimate Friendship Survival Guide for Tween Girls: HOW TO MAKE FRIENDS, HANDLE DRAMA, BUILD CONFIDENCE, DEVELOP SOCIAL SKILLS, AND BE YOURSELF (Puberty: Books for Girls 8–12 Book 2)
by Ruby Calloway
- Price$7.99
- Rating4.8
- Reviews104
-
The Ultimate Puberty Survival Guide for Tween Boys (Puberty: Books for Boys 8–13)
by Ruby Calloway
- Price$14.99
- Rating4.7
- Reviews30
-
The Ultimate Puberty Survival Guide for Tween Girls: How To Handle Body Changes, Big Feelings, Friendships, Social Skills, And Everything In Between (Puberty: Books for Girls 8–12)
by Ruby Calloway
- Price$14.99
- Rating4.7
- Reviews155
- Published2025-08
-
The Ultimate Friendship Survival Guide for Tween Girls: HOW TO MAKE FRIENDS, HANDLE DRAMA, BUILD CONFIDENCE, DEVELOP SOCIAL SKILLS, AND BE YOURSELF (Puberty: Books for Girls 8–12)
by Ruby Calloway
- Price$14.99
- Rating4.8
- Reviews104
-
The Ultimate Emotional Wellness Survival Guide for Tween Girls: Understanding Feelings, Building Confidence, Managing Emotions, Developing Social ... Yourself (Puberty: Books for Girls 8–12)
by Ruby Calloway
- Price$14.99
- Rating4.9
- Reviews47
-
The Ultimate Emotional Wellness Survival Guide for Tween Girls: Understanding Feelings, Building Confidence, Managing Emotions, Developing Social Skills, ... (Puberty: Books for Girls 8–12 Book 3)
by Ruby Calloway
- Price$7.99
- Rating4.9
- Reviews47
Main categories
FAQ
How many books does Ruby Calloway have on Amazon?
KDPTop tracks 8 of their books; 8 made an Amazon list in the last 30 days.
Which categories does Ruby Calloway publish in?
Their books chart most often in Social Situations, Maturing, Personal Health.
How does Ruby Calloway price their books?
The median price is $11.49; half of the books cost $7.99–$14.99.
Has Ruby Calloway released new books recently?
6 new books in the last 30 days, 3 of which reached a Best Sellers list.
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.