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Ria de Jong: Amazon KDP author data
As of Nov 6, 2026, Ria de Jong has 11 books on Amazon, 8 of them on a best-seller list in the last 30 days (best rank #1), mostly in Singapore, Southeast, General.
| Median price | $16.13 |
|---|---|
| Price range (middle 50%) | $14.99 – $21.04 |
| Median reviews | 47 |
| Total reviews | 820 |
| New books (30 days) | 4 |
| Breakout books (30 days) | 4 |
What stands out
- 73% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- 4 new books in the last 30 days, 4 of them broke into a Best Sellers list.
Ria de Jong's best-ranked books
-
Lonely Planet Pocket Singapore: Discover Twice the City in Half the Time | Top Sights | Maps & Walking Tours | Covers Gardens by the Bay, Buddha Tooth ... Temple, Tekka Centre and more (Pocket Guide)
by Ria de Jong
- Price$13.90
- Rating4.6
- Reviews73
-
Lonely Planet Singapore: Plan the Trip of a Lifetime | Detailed Itineraries & Maps | Insider Tips | Covers Colonial District, Marina Bay, Little India, Sentosa Island and more (Travel Guide)
by Ria de Jong
- Price$21.04
- Rating4.0
- Reviews2
-
Lonely Planet Singapore: Plan the Trip of a Lifetime | Detailed Itineraries & Maps | Insider Tips | Covers Colonial District, Marina Bay, Chinatown and more (Travel Guide)
by Ria de Jong
- Price$24.99
- Rating4.6
- Reviews143
-
Lonely Planet Singapore (Travel Guide)
by Ria de Jong
- Price$16.99
- Rating4.0
- Reviews2
- Published2026-08
-
Lonely Planet Pocket Singapore: Discover Twice the City in Half the Time | Top Sights | Maps & Walking Tours | Covers the Quays, Chinatown, Holland Village, Sentosa Island and more (Pocket Guide)
by Ria de Jong
- Price$14.99
- Rating5.0
- Reviews5
-
Lonely Planet Pocket Singapore (Pocket Guide)
by Ria de Jong
- Price$14.99
- Reviews-
-
Lonely Planet Singapore (Travel Guide)
by Ria de Jong
- Price$16.13
- Rating4.5
- Reviews217
-
Lonely Planet Pocket Singapore (Pocket Guide)
by Ria de Jong
- Price-
- Rating4.5
- Reviews180
-
Lonely Planet Southeast Asia on a shoestring (Travel Guide)
by Ria de Jong
- Price$14.54
- Rating4.5
- Reviews160
- Published2016-10
-
Malasia, Singapur y Brunéi 5: Rutas detalladas, las mejores experiencias, mapas y consejos de expertos
by Ria de Jong
- Price$46.27
- Rating4.2
- Reviews21
- Published2024-11
Main categories
FAQ
How many books does Ria de Jong have on Amazon?
KDPTop tracks 11 of their books; 8 made an Amazon list in the last 30 days.
Which categories does Ria de Jong publish in?
Their books chart most often in Singapore, Southeast, General.
How does Ria de Jong price their books?
The median price is $16.13; half of the books cost $14.99–$21.04.
Has Ria de Jong released new books recently?
4 new books in the last 30 days, 4 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.