KDP categories · Top KDP authors
ISDN: Amazon KDP category data
Amazon Books Best Sellers data for ISDN, updated Nov 2, 2026: median price $58.67, median 0 reviews, average rating 3.9 and a KDPTop opportunity score of 28/100 (highly competitive).
| Price range (middle 50%) | $33.75 – $109 |
|---|---|
| Average rating | 3.9 |
| New releases (90 days) | 0% |
| Books on the list | 99 |
| Store | Books |
What stands out
- Its median reviews are 0% of the parent category Networks, Protocols & APIs (50), one of the easier corners under it.
- Its review barrier is lower than in 99% of Books categories: the median best seller has only 0 reviews, so new books can chart with few.
- Only 0% of its best sellers are under 90 days old, fewer than in 99% of Books categories: established titles hold the list.
Top 10 ISDN best sellers
-
Applied Data Communications and Networks
by B. Buchanan
- List rank#1
- Price$54.99
- Reviews-
-
iPhone 13 User Guide: A Complete Step-by-Step Manual for Beginners and Seniors on How to Setup the New Apple iPhone 13 Features and Functions Including Tips & Tricks to Master Your Smartphone Quickly
by Denvey Easton
- List rank#2
- Price$15.20
- Rating3.8
- Reviews14
-
MPLS: Technology and Applications (Morgan Kaufmann Series in Networking)
by Bruce S. Davie
- List rank#3
- Price$28
- Rating4.8
- Reviews10
-
Head First Ajax: A Brain-Friendly Guide
by Rebecca M. Riordan
- List rank#4
- Price$61.95
- Rating3.8
- Reviews40
-
Apple Watch Series 7 User Guide: A Complete Step-by-Step Manual for Beginners and Seniors on How to Setup the New Apple Watch Series 7 Features and Functions Including Tips & Tricks for WatchOS 8
by Denvey Easton
- List rank#5
- Price$14.20
- Rating4.7
- Reviews5
-
Atm Network Planning and Implementation (Practical Networking Series)
by Art Edmonds
- List rank#6
- Price-
- Reviews-
-
Traffic Engineering With Mpls (Networking Technology)
by Eric Osborne
- List rank#7
- Price$49.47
- Rating4.7
- Reviews21
-
Advanced Mpls Design and Implementation
by Vivek Alwayn
- List rank#8
- Price-
- Rating4.7
- Reviews17
-
High-Speed Networking: A Systematic Approach to High-Bandwidth Low-Latency Communication (Networking Council)
by James P. G. Sterbenz
- List rank#9
- Price$77.84
- Rating5.0
- Reviews4
-
MPLS Configuration On Cisco IOS Software
by Lancy Lobo
- List rank#10
- Price$54.72
- Rating4.0
- Reviews19
FAQ
Is ISDN a good niche for Amazon KDP?
Its KDPTop opportunity score is 28/100, which makes it highly competitive. The median best seller has 0 reviews and sells for $58.67.
How many reviews do you need to rank in ISDN?
The median best seller has 0 reviews, and 100% of them have fewer than 100.
What do ISDN best sellers cost?
The median price is $58.67; half of the best sellers are priced between $33.75 and $109.
Can new books break into ISDN?
0% 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.