KDP categories · Top KDP authors
Plumbing: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Plumbing, updated Nov 2, 2026: median price $9.99, median 4 reviews, average rating 4.2 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $7.50 – $39.95 |
|---|---|
| Average rating | 4.2 |
| New releases (90 days) | 10% |
| Books on the list | 98 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 5% of the parent category Construction (66), one of the easier corners under it.
- Its review barrier is lower than in 91% of Kindle eBooks categories: the median best seller has only 4 reviews, so new books can chart with few.
- Prices spread wide: the middle half runs from $7.50 to $39.95, so budget editions and premium or boxed sets sell side by side.
Top 10 Plumbing best sellers
-
The Air-to-Water Handbook: An Illustrated Beginner's Guide to Building, Testing, and Safely Using Atmospheric Water Harvesting Systems
by Charles Briggs
- List rank#1
- Price$9.94
- Rating1.0
- Reviews1
-
DIY Pex Pipe Plumbing: Step-By-Step Residential Pex Plumbing, Fittings and Tools Guide Book (Homeowner Plumbing Help 7)
by Harper Wells
- List rank#2
- Price$9.99
- Rating3.6
- Reviews25
-
Contractor’s License Exam Prep: Complete Study Guide with Practice Questions and Answers to Pass the Contractor Business and Law Exam on Your First Try
by Mike L Porter
- List rank#3
- Price$9.99
- Reviews-
-
Harvesting Rainwater for Your Homestead in 9 Days or Less: 7 Steps to Unlocking Your Family's Clean, Independent, and Off-Grid Water Source with the QuickRain Blueprint
by Renee Dang
- List rank#4
- Price$9.99
- Rating4.7
- Reviews453
-
Wisconsin Plumbing Code: 2025
by State of Wisconsin
- List rank#5
- Price$8.99
- Reviews-
-
Journeyman Plumber – Plumbing Code Made Simple: Pass the Journeyman Plumber Exam with Confidence | UPC & IPC Code Made Easy, Practice Tests Included, Real-World Prep That Gets You Licensed
by Elias G. Weldon
- List rank#6
- Price$9.99
- Rating4.1
- Reviews30
-
Manual de Plomería para Journeyman Plumber 2026–2027: Guía de preparación en español basada en el IPC 2024 con matemáticas, isométricos, navegación del ... 650+ preguntas de práctica (Spanish Edition)
by Javier Montelongo
- List rank#7
- Price$0
- Rating5.0
- Reviews1
-
Modern Pipefitter's Manual
by Andrea L. Hoffman
- List rank#8
- Price$64.99
- Reviews-
-
Journeyman Plumber Exam Prep 2026–2027: 2024 IPC Study Guide with Plumbing Math, Isometric Drawings, Code Navigation, Practice Tests, Answer Explanations & Online Simulator
by Mia Smith
- List rank#9
- Price$9.99
- Rating5.0
- Reviews2
-
Plumbing A House
by Peter Hemp
- List rank#10
- Price$28
- Rating4.3
- Reviews100
FAQ
Is Plumbing a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 4 reviews and sells for $9.99.
How many reviews do you need to rank in Plumbing?
The median best seller has 4 reviews, and 92% of them have fewer than 100.
What do Plumbing best sellers cost?
The median price is $9.99; half of the best sellers are priced between $7.50 and $39.95.
Can new books break into Plumbing?
10% of the current best sellers were released in the last 90 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.