KDP categories · Top KDP authors
RK Publishing: Amazon KDP author data
As of Nov 6, 2026, RK Publishing has 18 books on Amazon, 11 of them on a best-seller list in the last 30 days (best rank #14), mostly in Advanced Placement, Calculus, Physics.
| Median price | $18.99 |
|---|---|
| Price range (middle 50%) | $18.99 – $18.99 |
| Median reviews | 195 |
| Total reviews | 631 |
| New books (30 days) | 9 |
| Breakout books (30 days) | 1 |
What stands out
- 61% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $18.99, 17% below the median of their main category, Advanced Placement.
- 9 new books in the last 30 days, 1 of them broke into a Best Sellers list.
RK Publishing's best-ranked books
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Mental Toughness for Champions: Transform from No One to Stardom; 9 Sureshot Techniques to Increase Resilience, Forge an Invincible Mindset, and Succeed in Any Competitive Sport and Beyond
by RK Publishing
- Price$12.82
- Rating4.9
- Reviews224
-
Fortaleza Mental para Jóvenes Atletas: 9 técnicas infalibles para desarrollar la resiliencia, forjar una mentalidad invencible, y tener éxito en ... competitivo y en la vida (Spanish Edition)
by RK Publishing
- Price$2.99
- Rating4.8
- Reviews166
-
Physics 1 Mini Textbook: Everything You Need to Know for Physics 1 in 66 Pages
by RK Publishing
- Price$18.99
- Reviews-
-
Mental Toughness for Champions: Transform from NO ONE to STARDOM; 9 Sureshot Techniques to Increase Resilience, Forge an Invincible Mindset, and Succeed in Any Competitive Sport and Beyond
by RK Publishing
- Price$0
- Rating4.9
- Reviews224
- Published2023-01
-
Intro to Psychology: Mini Textbook
by RK Publishing
- Price$14.99
- Rating4.8
- Reviews17
- Published2022-09
-
U.S. History Mini Textbook: Everything You Need to Know About U.S. History in 71 Pages
by RK Publishing
- Price$18.99
- Reviews-
-
European History Mini Textbook: Everything You Need to Know for AP or College Intro European History
by RK Publishing
- Price$18.99
- Reviews-
-
Calculus 1 and 2 Mini Textbook: Everything You Need to Know in for AP Calculus BC or College Calculus 1 and 2 in 75 Pages
by RK Publishing
- Price$18.99
- Reviews-
-
Precalculus Mini Textbook: Everything You Need to Know About Precalculus in 57 Pages
by RK Publishing
- Price$18.99
- Reviews-
-
Human Geography Mini Textbook: Everything You Need to Know for AP Human Geography or College Intro Human Geography in 65 Pages
by RK Publishing
- Price$18.99
- Reviews-
Main categories
FAQ
How many books does RK Publishing have on Amazon?
KDPTop tracks 18 of their books; 11 made an Amazon list in the last 30 days.
Which categories does RK Publishing publish in?
Their books chart most often in Advanced Placement, Calculus, Physics.
How does RK Publishing price their books?
The median price is $18.99; half of the books cost $18.99–$18.99.
Has RK Publishing released new books recently?
9 new books in the last 30 days, 1 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.