KDP categories · Top KDP authors
Ryan Bui: Amazon KDP author data
As of Nov 6, 2026, Ryan Bui has 19 books on Amazon, 13 of them on a best-seller list in the last 30 days, mostly in Success, Motivational, Personal Transformation.
| Median price | $2.99 |
|---|---|
| Price range (middle 50%) | $2.99 – $2.99 |
| Median reviews | 2 |
| Total reviews | 37 |
| New books (30 days) | 1 |
| Breakout books (30 days) | 0 |
What stands out
- 68% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $2.99, 70% below the median of their main category, Success.
Ryan Bui's best-ranked books
-
The Duke's Missing Fiancée: A Time Travel Historical Romance
by Ryan Bui
- Price$2.99
- Rating4.1
- Reviews19
-
Bound to the Shadow King: A Dark Enemies-to-Lovers Romantasy
by Ryan Bui
- Price$0
- Rating3.1
- Reviews5
-
The Power of Positive Thinking: Transform Your Mindset, Overcome Negativity, and Create a Life of Confidence, Resilience, and Success
by Ryan Bui
- Price$0
- Rating4.7
- Reviews4
-
Gratitude Changes Everything: How a Daily Practice of Thankfulness Can Transform Your Happiness, Relationships, Health, and Future
by Ryan Bui
- Price$0
- Rating4.3
- Reviews3
-
Loving Him After Memory Loss: An Emotional Amnesia Romance with Twists You'll Never Forget
by Ryan Bui
- Price$0
- Rating3.5
- Reviews2
-
Enemies in the Office: An Enemies-to-Lovers Workplace Romance
by Ryan Bui
- Price$0
- Rating3.5
- Reviews2
- Published2026-07
-
The 4AM Advantage: How Waking Early Changes Everything
by Ryan Bui
- Price$0
- Rating5.0
- Reviews1
- Published2026-04
-
The Billionaire Who Lost His Name: A Billionaire Amnesia Romance
by Ryan Bui
- Price$0
- Rating3.0
- Reviews1
- Published2026-09
-
You Are One Decision Away: How Tiny Choices Create Extraordinary Lives
by Ryan Bui
- Price$0
- Reviews-
- Published2026-04
-
Alone Is a Doorway: How Solitude Transforms You and Teaches the Art of Stillness
by Ryan Bui
- Price$0
- Reviews-
Main categories
FAQ
How many books does Ryan Bui have on Amazon?
KDPTop tracks 19 of their books; 13 made an Amazon list in the last 30 days.
Which categories does Ryan Bui publish in?
Their books chart most often in Success, Motivational, Personal Transformation.
How does Ryan Bui price their books?
The median price is $2.99; half of the books cost $2.99–$2.99.
Has Ryan Bui released new books recently?
1 new book in the last 30 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.