KDP categories · Top KDP authors
Daniel Harper: Amazon KDP author data
As of Nov 6, 2026, Daniel Harper has 13 books on Amazon, 11 of them on a best-seller list in the last 30 days (best rank #1), mostly in Electrical & Electronics, Circuits, Electronics.
| Median price | $16.93 |
|---|---|
| Price range (middle 50%) | $7.98 – $22.06 |
| Median reviews | 18 |
| Total reviews | 464 |
| New books (30 days) | 4 |
| Breakout books (30 days) | 2 |
What stands out
- 85% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $16.93, 29% below the median of their main category, Electrical & Electronics.
- 4 new books in the last 30 days, 2 of them broke into a Best Sellers list.
Daniel Harper's best-ranked books
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Journeyman Electrician Exam Prep – New NEC 2026 Edition Your Complete Study System to Pass the Test with Confidence: Includes Practice Tests, Load Calculations, Code Review, and Real-World Examples
by Daniel Harper
- Price$22.29
- Rating4.6
- Reviews215
- Published2026-01
-
Journeyman Electrician Exam Prep - New NEC 2026 Edition: Your Complete Study System to Pass the Test with Confidence — Includes Practice Tests, Load Calculations, Code Review, and Real-World Examples
by Daniel Harper
- Price$31.95
- Rating4.6
- Reviews215
-
Steel, Lake, and Deep Dish: A Traveler's Guide to Chicago's Neighborhoods and Skyline
by Daniel Harper
- Price$20.95
- Reviews-
-
ROXETTE | 25 Songs, 25 Stories: Behind the Music
by Daniel Harper
- Price$2.99
- Rating4.4
- Reviews4
-
Nashville Unlocked: The Essential Guide to Historic Landmarks, Southern Cuisine, and Hidden Spots
by Daniel Harper
- Price$22.99
- Reviews-
-
How to Get Section 8 Housing: The Complete Step-by-Step Guide to Getting on the Waitlist, Earning Your Voucher, and Finding a Home That Accepts It (The Affordable Housing Blueprint)
by Daniel Harper
- Price$2.99
- Reviews-
-
Portugal Coastal Roads and Hidden Towns 2026:: An Independent Traveler's Guide
by Daniel Harper
- Price$21.99
- Reviews-
-
Stop Waking Up to Pee at Night: Simple Evening Habits to Reduce Nighttime Urination, Sleep Better, and Feel Rested Again
by Daniel Harper
- Price$15.90
- Reviews-
-
PELLET B STUDY GUIDE: Cut the Guesswork & Move Faster into Your Law Enforcement Career | Full-Length Practice Tests & Insider Tips to Focus Only on What Actually Gets Tested & Avoid Costly Retakes
by Daniel Harper
- Price$9.99
- Rating4.9
- Reviews18
-
The Stress-Free iPhone 17 Guide for Beginners: The Large-Print, Step-by-Step Manual That Helps You Avoid Scams, Fix Common Issues, Stay Connected, Finally Use Your Phone with Clarity and Confidence
by Daniel Harper
- Price$17.97
- Rating4.4
- Reviews12
- Published2025-12
Main categories
FAQ
How many books does Daniel Harper have on Amazon?
KDPTop tracks 13 of their books; 11 made an Amazon list in the last 30 days.
Which categories does Daniel Harper publish in?
Their books chart most often in Electrical & Electronics, Circuits, Electronics.
How does Daniel Harper price their books?
The median price is $16.93; half of the books cost $7.98–$22.06.
Has Daniel Harper released new books recently?
4 new books in the last 30 days, 2 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.