KDP categories · Top KDP authors
Vishal Kumar: Amazon KDP author data
As of Nov 6, 2026, Vishal Kumar has 6 books on Amazon, 6 of them on a best-seller list in the last 30 days (best rank #42), mostly in Software Design, Testing & Engineering, Testing, Software Development.
| Median price | $3.99 |
|---|---|
| Price range (middle 50%) | $2.99 – $5.16 |
| Median reviews | 1 |
| Total reviews | 1 |
| New books (30 days) | 5 |
| Breakout books (30 days) | 1 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $3.99, 60% below the median of their main category, Software Design, Testing & Engineering.
- 5 new books in the last 30 days, 1 of them broke into a Best Sellers list.
Vishal Kumar's best-ranked books
-
English Advanced Vocabulary latest : Advanced english vocabulary words with defination,examples,synonyms and antonyms 1300+ words helpful in exams like ACT CAE LSAT SAT MCAT TOEFL PTE IELTS GMAT GRE
by Vishal Kumar
- Price$5.16
- Reviews-
-
pytest: From Zero to Professional: A Hands-On Guide to Testing Python Applications with pytest, Real-World Examples, Fixtures, Mocking, APIs, Plugins, and CI/CD
by Vishal Kumar
- Price$3.99
- Reviews-
- Published2026-09
-
The Modern QA Engineer Playbook: A Practical Guide to Playwright, API Testing, AI, Performance Testing, and CI/CD
by Vishal Kumar
- Price$0
- Rating5.0
- Reviews1
- Published2026-08
-
Milo & Bit: The Code Quest: A Fun Coding Adventure for Kids Ages 6–9 — Learn Algorithms, Loops, Debugging & More
by Vishal Kumar
- Price$2.99
- Reviews-
- Published2026-08
-
Python from Zero to Interview: A Practical Beginner's Guide to Python Programming, Real-World Projects, Practice Problems & Interview Questions
by Vishal Kumar
- Price$5.99
- Reviews-
-
JavaScript Interview Handbook: From JavaScript Fundamentals to Advanced Async, Node.js, TypeScript, Testing, Machine Coding, Output Puzzles, and Real-World Interview Problems
by Vishal Kumar
- Price$2.99
- Reviews-
Main categories
FAQ
How many books does Vishal Kumar have on Amazon?
KDPTop tracks 6 of their books; 6 made an Amazon list in the last 30 days.
Which categories does Vishal Kumar publish in?
Their books chart most often in Software Design, Testing & Engineering, Testing, Software Development.
How does Vishal Kumar price their books?
The median price is $3.99; half of the books cost $2.99–$5.16.
Has Vishal Kumar released new books recently?
5 new books in the last 30 days, 1 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.