KDP categories · Top KDP authors

Light (Physics, Kindle eBooks): Amazon KDP category data

Amazon Kindle eBooks Best Sellers data for Light (Physics, Kindle eBooks), updated Nov 3, 2026: median price $7, median 8 reviews, average rating 4.4 and a KDPTop opportunity score of 23/100 (highly competitive).

23Opportunity / 100
$7Median price
8Median reviews
Price range (middle 50%)$5.00 – $12.49
Average rating4.4
New releases (90 days)19%
Books on the list100
StoreKindle eBooks

What stands out

  • Its median reviews are 1% of the parent category Physics (682), one of the easier corners under it.
  • 19% of its best sellers came out in the last 90 days, more than in 85% of Kindle eBooks categories: readers here keep buying new titles.
  • Its review barrier is lower than in 84% of Kindle eBooks categories: the median best seller has only 8 reviews, so new books can chart with few.

Top 10 Light best sellers

  1. Scientific American September 2026 book cover by Scientific American

    Scientific American September 2026

    by Scientific American

    • List rank#1
    • Price$6.99
    • Rating4.8
    • Reviews13

    View on Amazon · Full data on KDPTop

  2. Scientific American October 2026 book cover by Scientific American

    Scientific American October 2026

    by Scientific American

    • List rank#2
    • Price$6.99
    • Rating4.2
    • Reviews7

    View on Amazon · Full data on KDPTop

  3. Scientific American June 2026 book cover by Scientific American

    Scientific American June 2026

    by Scientific American

    • List rank#3
    • Price$6.99
    • Rating4.4
    • Reviews42

    View on Amazon · Full data on KDPTop

  4. Scientific American November 2026 book cover by Scientific American

    Scientific American November 2026

    by Scientific American

    • List rank#4
    • Price$6.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  5. FASTER THAN LIGHT: HOW YOUR SHADOW CAN DO IT BUT YOU CAN'T book cover by Robert J.  Nemiroff

    FASTER THAN LIGHT: HOW YOUR SHADOW CAN DO IT BUT YOU CAN'T

    by Robert J. Nemiroff

    • List rank#5
    • Price$1.99
    • Rating4.3
    • Reviews383

    View on Amazon · Full data on KDPTop

  6. QED: The Strange Theory of Light and Matter (Princeton Science Library Book 33) book cover by Richard P. Feynman

    QED: The Strange Theory of Light and Matter (Princeton Science Library Book 33)

    by Richard P. Feynman

    • List rank#6
    • Price$9.99
    • Rating4.6
    • Reviews1,104

    View on Amazon · Full data on KDPTop

  7. The Universal One book cover by Walter Russell

    The Universal One

    by Walter Russell

    • List rank#7
    • Price$9.99
    • Rating4.6
    • Reviews812

    View on Amazon · Full data on KDPTop

  8. Quantum Physics for Beginners: Quantum Mechanics Made Simple: Wave-Particle Duality, Super book cover by Alex Hale

    Quantum Physics for Beginners: Quantum Mechanics Made Simple: Wave-Particle Duality, Superposition, Entanglement, Schrödinger's Cat, Tech Shaping Our World and the Myths Everyone Gets Wrong.

    by Alex Hale

    • List rank#8
    • Price$2.99
    • Rating5.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  9. Scientific American July/August 2026 book cover by Scientific American

    Scientific American July/August 2026

    by Scientific American

    • List rank#9
    • Price$6.99
    • Rating4.7
    • Reviews8

    View on Amazon · Full data on KDPTop

  10. What Is Color?: 50 Questions and Answers on the Science of Color book cover by Arielle Eckstut

    What Is Color?: 50 Questions and Answers on the Science of Color

    by Arielle Eckstut

    • List rank#10
    • Price$9.99
    • Rating4.7
    • Reviews158

    View on Amazon · Full data on KDPTop

Same niche in Books: Light

FAQ

Is Light a good niche for Amazon KDP?

Its KDPTop opportunity score is 23/100, which makes it highly competitive. The median best seller has 8 reviews and sells for $7.

How many reviews do you need to rank in Light?

The median best seller has 8 reviews, and 78% of them have fewer than 100.

What do Light best sellers cost?

The median price is $7; half of the best sellers are priced between $5.00 and $12.49.

Can new books break into Light?

19% 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.