KDP categories · Top KDP authors
Inc. Builder's Book: Amazon KDP author data
As of Nov 6, 2026, Inc. Builder's Book has 26 books on Amazon, 17 of them on a best-seller list in the last 30 days (best rank #8), mostly in Electrical, Construction, How-to & Home Improvements.
| Median price | $19.95 |
|---|---|
| Price range (middle 50%) | $11.45 – $36.95 |
| Median reviews | 7 |
| Total reviews | 793 |
| New books (30 days) | 4 |
| Breakout books (30 days) | 3 |
What stands out
- 65% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $19.95, 20% below the median of their main category, Electrical.
- 4 new books in the last 30 days, 3 of them broke into a Best Sellers list.
Inc. Builder's Book's best-ranked books
-
Duct Sizing Calculator, English & Metric Units
by Inc. Builder's Book
- Price$13.45
- Rating4.9
- Reviews17
-
National Electrical Code Quick-Card Based On the 2026 NEC
by Inc. Builder's Book
- Price$12.95
- Rating4.6
- Reviews9
- Published2026-03
-
Quick Formula Guide Based on the 2026 National Electrical Code NEC
by Inc. Builder's Book
- Price$6.95
- Rating4.2
- Reviews18
- Published2026-01
-
2025 Certified Welding Inspector AWS/CWI QuickPass Flash-Cards
by Inc. Builder's Book
- Price$36.95
- Rating4.2
- Reviews7
-
Electrical Residential Rough-In Quick-Card Based on the 2026 NEC
by Inc. Builder's Book
- Price$12.95
- Rating4.2
- Reviews4
-
Dr. Watts Pocket Electrical Guide Based on the NEC 2026
by Inc. Builder's Book
- Price$19.95
- Rating4.4
- Reviews21
-
Certified Welding Inspector AWS/CWI QuickPass Study Tool Book based on AWS D1.1 2025 with Online Interactive Software
by Inc. Builder's Book
- Price$87.79
- Rating4.2
- Reviews6
-
2026 Journeyman Electrician Exam QuickPass Flash-Cards
by Inc. Builder's Book
- Price$36.95
- Reviews-
-
QuickPass Study Tools for the C-20 Warm-Air Heating, Ventilating and Air-Conditioning License Examination - Study Guide
by Inc. Builder's Book
- Price$96.83
- Rating3.1
- Reviews5
-
2026 Master Electrician Exam QuickPass Flash-Cards
by Inc. Builder's Book
- Price$36.95
- Reviews-
Main categories
FAQ
How many books does Inc. Builder's Book have on Amazon?
KDPTop tracks 26 of their books; 17 made an Amazon list in the last 30 days.
Which categories does Inc. Builder's Book publish in?
Their books chart most often in Electrical, Construction, How-to & Home Improvements.
How does Inc. Builder's Book price their books?
The median price is $19.95; half of the books cost $11.45–$36.95.
Has Inc. Builder's Book released new books recently?
4 new books in the last 30 days, 3 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.