All categories

Science Fiction Graphic Novels — Kindle Category Opportunity

Competition snapshot for the Comics, Manga & Graphic Novels best-seller list, ease-of-entry score 62.0/100.

MiddleSubcategoryStagnant

Category metrics

Score

62.0

Median reviews

88.5

Weak share (top 20)

50%

Median price

$5.99

Median star rating

4.5

Books scanned

50

Worth writing in?

Science Fiction Graphic Novels sits below our demand gate: 50% of the top 20 is under-reviewed, but overall reader activity is thin too. It can be a quiet corner to build in slowly — validate demand with keyword lookups before committing a series. Ease-of-entry score 62.0/100.

Breakout books — top 15, under 100 reviews, $0.99–4.99

Best-seller list on Amazon
#TitleStarReviewsPrice
6White Sky #7—0$3.99
7White Sky #8—0$3.99
8Power Rangers Unlimited #4 (Power Rangers Unlimited (2026))4.52$4.99
2Star Trek: Zero Point #14.36$4.99
11Star Trek: The Last Starship #114.126$1.99

High-frequency phrases in this category's titles

Mine all categories

High-frequency phrases mined from the 50 best-seller titles on this category's list. The ease-of-entry score tells you how winnable the category is; these title phrases tell you which words readers search with — use the two layers together. Frequency is a title statistic, not a search-volume estimate.

PhraseTitlesRank-weighted score
star trek8204
white sky289
green lantern580
amazing spider man280
star wars370
whisper war260
red light255
star trek the last253
trek the last starship253
star wars darth vader251
21st century241
ghost of the 21st241

Sign in and click any phrase to send it straight to the keyword competition lookup.

2 subcategories under this category

SubcategoryScoreMedian reviews
█████89.09
█████76.56

Subcategory names are visible after sign-in — a free account unlocks every subcategory score.

Sign up free to unlock

Check the keywords before you write

Category scores show where entry is easiest; keyword lookups show whether readers actually reach for it. A free account includes keyword competition lookups plus unlimited category scans.

After you publish: why aren't readers buying?

Category research picks the direction; review diagnosis reads the readers. The same platform clusters a book's critical reviews into severity-ranked root causes, each anchored to verbatim quotes — see it applied to a full narrative-history title.

Keep researching with the free tools

Research snapshot scanned on Oct 19, 2026. Refreshed periodically — not live tracking.