KDP categories · Top KDP authors
Harold C. Kelly: Amazon KDP author data
As of Nov 6, 2026, Harold C. Kelly has 8 books on Amazon, 4 of them on a best-seller list in the last 30 days (best rank #1), mostly in Antiques Care & Reference, Clocks & Watches, Mechanical.
| Median price | $13.27 |
|---|---|
| Price range (middle 50%) | $9.99 – $27.31 |
| Median reviews | 330 |
| Total reviews | 3,264 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
What stands out
- 50% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $13.27, 41% below the median of their main category, Antiques Care & Reference.
Harold C. Kelly's best-ranked books
-
Watch Repair for Beginners: An Illustrated How-To Guide for the Beginner Watch Repairer
by Harold C. Kelly
- Price$8.99
- Rating4.2
- Reviews952
-
Clock Repairing as a Hobby: An Illustrated How-to Guide for the Beginner
by Harold C. Kelly
- Price$9.99
- Rating4.2
- Reviews600
-
Watch Repair for Beginners: An Illustrated How-To Guide for the Beginner Watch Repairer
by Harold C. Kelly
- Price$11.56
- Rating4.2
- Reviews952
-
A Practical Course in Horology
by Harold C. Kelly
- Price$9.99
- Rating4.1
- Reviews61
-
Clock Repairing As a Hobby: An Illustrated How-to Guide for the Beginner
by Harold C. Kelly
- Price$46.26
- Rating4.2
- Reviews600
- Published1975-01
-
A Practical Course in Horology
by Harold C. Kelly
- Price$20.99
- Rating4.1
- Reviews61
- Published2016-09
-
Clock repairing as a hobby
by Harold C. Kelly
- Price$521
- Rating4.0
- Reviews36
- Published1973-01
-
Watch repairing as a hobby
by Harold C. Kelly
- Price$14.97
- Rating3.1
- Reviews2
- Published1974-01
Main categories
FAQ
How many books does Harold C. Kelly have on Amazon?
KDPTop tracks 8 of their books; 4 made an Amazon list in the last 30 days.
Which categories does Harold C. Kelly publish in?
Their books chart most often in Antiques Care & Reference, Clocks & Watches, Mechanical.
How does Harold C. Kelly price their books?
The median price is $13.27; half of the books cost $9.99–$27.31.
Has Harold C. Kelly 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.