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Mumble Media: Amazon KDP author data
Mumble Media has 21 books on Amazon, 21 of them on a best-seller list in the last 30 days (best rank #5), mostly in Sleep Disorders, Animals, Fauna.
21Books on Amazon
21Listed in 30 days
3.0Average rating
| Median price | $5.22 |
|---|---|
| Price range (middle 50%) | $5.22 – $5.22 |
| Median reviews | 1 |
| Total reviews | 3 |
| New books (30 days) | 6 |
| Breakout books (30 days) | 5 |
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 $5.22, 60% below the median of their main category, Sleep Disorders.
- 6 new books in the last 30 days, 5 of them broke into a Best Sellers list.
Mumble Media's best-ranked books
-
The Sleeping World: Exploring Floating Gardens with an Axolotl
by Mumble Media
- Price$5.22
- Reviews-
- Published2026-10
-
The Sleeping World: Feeding the Forest with a Mushroom
by Mumble Media
- Price$5.22
- Reviews-
- Published2026-09
-
The Sleeping World: Starry Nights with a Snowy Owl
by Mumble Media
- Price$5.22
- Rating4.0
- Reviews1
-
The Sleeping World: Soaking in Hot Springs with a Snow Monkey
by Mumble Media
- Price$5.22
- Reviews-
-
The Sleeping World: Seaside Grazing with a Sheep
by Mumble Media
- Price$5.22
- Rating1.0
- Reviews1
-
The Sleeping World: Lazing in the Lagoon with a Capybara
by Mumble Media
- Price$5.22
- Reviews-
- Published2026-09
-
The Sleeping World: Singing with a Humpback Whale
by Mumble Media
- Price$4.20
- Reviews-
-
The Sleeping World: Listening to the Forest with an Ancient Redwood
by Mumble Media
- Price$5.22
- Reviews-
-
The Sleeping World: Tidal Drifting with a Seahorse
by Mumble Media
- Price$5.22
- Reviews-
-
The Sleeping World: Evening Serenades with a Coquí Frog
by Mumble Media
- Price$5.22
- Rating4.0
- Reviews1
Main categories
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.