KDP categories · Top KDP authors
Bridges (Civil & Environmental, Books): Amazon KDP category data
Amazon Books Best Sellers data for Bridges (Civil & Environmental, Books), updated Nov 2, 2026: median price $24.99, median 10 reviews, average rating 4.5 and a KDPTop opportunity score of 30/100 (highly competitive).
| Price range (middle 50%) | $18.03 – $57.28 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 3% of the parent category Civil & Environmental (310), one of the easier corners under it.
- Only 3% of its best sellers are under 90 days old, fewer than in 88% of Books categories: established titles hold the list.
- Its review barrier is lower than in 83% of Books categories: the median best seller has only 10 reviews, so new books can chart with few.
Top 10 Bridges best sellers
-
The Great Bridge: The Epic Story of the Building of the Brooklyn Bridge
- List rank#1
- Price$26.19
- Rating4.6
- Reviews4,407
-
PE Civil Structural Exam Prep: The Most Complete Study Guide with Practice Problems, Step-by-Step Solutions, In-Depth Reviews & Full Exams to Get Ready in No Time and Pass with Confidence
by Learnova
- List rank#2
- Price$57.77
- Rating4.9
- Reviews103
-
PPI FE Civil Review From the Trusted Expertise of Michael R. Lindeburg with Solved Example Problems and Step by Step Solutions for a Comprehensive Review of the 2026 NCEES Computer Based FE Exam
by Michael R. Lindeburg PE
- List rank#3
- Price$149
- Rating4.4
- Reviews761
-
PPI FE Civil Practice – Unlock FE Exam Confidence with Michael R. Lindeburg! Master Using NCEES FE Handbook Key Equations, Terminology, and Tables with Exam-Like Practice and Detailed Solutions
by Michael R. Lindeburg PE
- List rank#4
- Price$105
- Rating4.6
- Reviews317
-
Chief Engineer: Washington Roebling, The Man Who Built the Brooklyn Bridge
by Erica Wagner
- List rank#5
- Price$2.99
- Rating4.4
- Reviews123
-
PPI FE Civil Exams – Includes 5 Full FE Civil Practice Exams with Step-by-Step Solutions, Over 550 Practice Problems for the NCEES FE Exam (Ppi Exam)
by Mohammad Iqbal DSc PE SE Esq.
- List rank#6
- Price$130
- Rating4.4
- Reviews47
-
Basic knowledge in civil engineering: Book of 59 topics including history of civil engineering (NR)
by Narasimha Vavilala
- List rank#7
- Price$4.82
- Rating2.9
- Reviews28
-
Exploring AutoCAD Civil 3D 2026, 15th Edition
by CADCIM Technologies
- List rank#8
- Price$37.28
- Reviews-
-
The Bridges of New York (New York City)
by Sharon Reier
- List rank#9
- Price$19.47
- Rating4.6
- Reviews76
-
The Young Engineer's Guidebook: A Fun Introduction to Engineering for Kids
by Robert Spoochie
- List rank#10
- Price$18.99
- Rating4.8
- Reviews17
FAQ
Is Bridges a good niche for Amazon KDP?
Its KDPTop opportunity score is 30/100, which makes it highly competitive. The median best seller has 10 reviews and sells for $24.99.
How many reviews do you need to rank in Bridges?
The median best seller has 10 reviews, and 88% of them have fewer than 100.
What do Bridges best sellers cost?
The median price is $24.99; half of the best sellers are priced between $18.03 and $57.28.
Can new books break into Bridges?
3% 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.