KDP categories · Top KDP authors
XHTML: Amazon KDP category data
Amazon Books Best Sellers data for XHTML, updated Nov 3, 2026: median price $21.98, median 17 reviews, average rating 4.3 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $13.99 – $40.01 |
|---|---|
| Average rating | 4.3 |
| New releases (90 days) | 3% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 6% of the parent category Programming Languages (297), 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 76% of Books categories: the median best seller has only 17 reviews, so new books can chart with few.
Top 10 XHTML best sellers
-
HTML and CSS QuickStart Guide: The Simplified Beginners Guide to Developing a Strong Coding Foundation, Building Responsive Websites, and Mastering ... (Coding & Programming - QuickStart Guides)
by David DuRocher
- List rank#1
- Price$23.25
- Rating4.5
- Reviews707
-
Web Development and Design Foundations with HTML5 (What's New in Computer Science)
by Terry Felke-Morris
- List rank#2
- Price$50
- Rating4.5
- Reviews304
-
HTML5 and CSS3 All-in-One For Dummies
by Andy Harris
- List rank#3
- Price$33.56
- Rating4.6
- Reviews550
-
Build Your First Website: Learn HTML, CSS & JavaScript Step-by-Step With Practical Projects & Simple Explanations (Computer Programming Made Easy)
by Ryan J. Mercer
- List rank#4
- Price$12.26
- Reviews-
-
Basics of Web Design: HTML5 & CSS3 (3rd Edition)
by Terry Felke-Morris
- List rank#5
- Price$21.98
- Rating4.2
- Reviews96
-
HTML & CSS Web Design for Beginners: A Comprehensive Step-by-Step Starter Guide to Designing Responsive, Dynamic, and Modern Websites (Programming for Beginners)
by Steven Gates
- List rank#6
- Price$19.99
- Rating4.4
- Reviews44
-
Modern HTML & CSS with AI: Build Smarter, Faster Websites Using Intelligent Tools, Responsive Design, and Real Projects (Modern Programming with AI)
by Ling Tianhao
- List rank#7
- Price$24.99
- Rating4.6
- Reviews13
-
HTMX in Practice: A Professional Guide to Creating Interactive Web Applications Using HTML-First Principles
by Richard E. Webster
- List rank#8
- Price$30.99
- Reviews-
-
XSLT, 2nd Edition
by Doug Tidwell
- List rank#9
- Price$33.23
- Rating4.7
- Reviews46
-
HTML and CSS for Beginners: A Step-by-Step Visual Guide with Code and Screenshots to Build Your First Mobile-Friendly Website from Scratch
by Liam John
- List rank#10
- Price$0
- Reviews-
FAQ
Is XHTML a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 17 reviews and sells for $21.98.
How many reviews do you need to rank in XHTML?
The median best seller has 17 reviews, and 82% of them have fewer than 100.
What do XHTML best sellers cost?
The median price is $21.98; half of the best sellers are priced between $13.99 and $40.01.
Can new books break into XHTML?
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.