KDP categories · Top KDP authors
Y A Marks: Amazon KDP author data
As of Nov 6, 2026, Y A Marks has 2 books on Amazon, 2 of them on a best-seller list in the last 30 days, mostly in Science Fiction, Dystopian, Loners & Outcasts.
2Books on Amazon
2Listed in 30 days
4.4Average rating
| Median price | - |
|---|---|
| Price range (middle 50%) | - |
| Median reviews | 14 |
| Total reviews | 27 |
| New listings (30 days, incl. new editions) | 0 |
| Breakout books (30 days) | 0 |
Y A Marks's best-ranked books
-
Class Zero: (Class Zero Series, Book 1)
by Y A Marks
- Price$0
- Rating4.1
- Reviews23
- Published2016-05
-
Inner Circle: (Class Zero Series, Book 2)
by Y A Marks
- Price$0
- Rating4.7
- Reviews4
- Published2019-08
Main categories
FAQ
How many books does Y A Marks have on Amazon?
KDPTop tracks 2 of their books; 2 made an Amazon list in the last 30 days.
Which categories does Y A Marks publish in?
Their books chart most often in Science Fiction, Dystopian, Loners & Outcasts.
Has Y A Marks released new books recently?
0 new books 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.