Crime Fiction on Amazon is a high-volume, competitive category with ~140k titles and a KU share above 53%, signalling that KU-enrolled series dominate discovery. Broad keyword demand is strong and stable across mystery, crime, and thriller terms, but pure noir is undersupplied relative to the romance-inflected variants (mystery romance, suspense romance, thriller romance all score above 53). The category is not growing explosively — it sits at 'Beaten Track Mainstream' — but steady series readers create reliable baseline sales. Romance crossover and female-driven crime are the fastest-rising currents inside the parent category; classic hardboiled male-detective noir is cooling as a standalone proposition.
7 ranked elements, 5 comp titles, 3 market gaps identified — unlock to see the full Map.
7 elements ranked by demand vs. supply…
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