KDP categories · Top KDP authors
Jim Magnuson: Amazon KDP author data
As of Nov 6, 2026, Jim Magnuson has 10 books on Amazon, 10 of them on a best-seller list in the last 30 days (best rank #7), mostly in Rocks & Minerals, Mineralogy, Central.
| Median price | $12.46 |
|---|---|
| Price range (middle 50%) | $9.95 – $16.18 |
| Median reviews | 44 |
| Total reviews | 1,628 |
| New books (30 days) | 0 |
| Breakout books (30 days) | 0 |
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 $12.46, 34% below the median of their main category, Rocks & Minerals.
Jim Magnuson's best-ranked books
-
From Rough Stones to Wow: Turn Your Rocks & Minerals into Beautiful Gems
by Jim Magnuson
- Price$17.61
- Rating4.9
- Reviews11
-
Gemstone Tumbling, Cutting, Drilling & Cabochon Making: A Simple Guide to Finishing Rough Stones
by Jim Magnuson
- Price-
- Rating4.6
- Reviews749
-
Agate Hunting Made Easy: How to Really Find Lake Superior Agates
by Jim Magnuson
- Price-
- Rating4.7
- Reviews450
-
Agate Hunting Made Easy: How to Really Find Lake Superior Agates
by Jim Magnuson
- Price$14.92
- Reviews-
-
Lake Superior Agates: Your Way to Easily Identify Agates (Adventure Quick Guides)
by Jim Magnuson
- Price$7.99
- Rating4.6
- Reviews316
-
Keokuk Geodes: Easily Find and Collect Iowa’s World-Famous Geodes (Adventure Quick Guides)
by Jim Magnuson
- Price$9.95
- Reviews-
- Published2026-04
-
Michigan's Copper Country Rocks & Minerals: Easily Identify Copper, Agates, and 36 Other Collectible Finds (Adventure Quick Guides)
by Jim Magnuson
- Price$9.95
- Rating5.0
- Reviews3
-
Rockhounding & Prospecting: Upper Midwest: How to Find Gold, Copper, Agates, Thomsonite, and Other Favorites
by Jim Magnuson
- Price$9.99
- Rating4.6
- Reviews44
-
From Rough Stones to Wow: Turn Your Rocks & Minerals into Beautiful Gems
by Jim Magnuson
- Price$16.73
- Rating4.9
- Reviews11
-
Rockhounding & Prospecting: Upper Midwest: How to Find Gold, Copper, Agates, Thomsonite & Other Favorites
by Jim Magnuson
- Price$15.99
- Rating4.6
- Reviews44
Main categories
FAQ
How many books does Jim Magnuson have on Amazon?
KDPTop tracks 10 of their books; 10 made an Amazon list in the last 30 days.
Which categories does Jim Magnuson publish in?
Their books chart most often in Rocks & Minerals, Mineralogy, Central.
How does Jim Magnuson price their books?
The median price is $12.46; half of the books cost $9.95–$16.18.
Has Jim Magnuson 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.