Serif title

All markets · 90-day comparable periods

+3.8percentage
points

Current prevalence3.8%1 matching covers / n=26

Previous period0%0 matching covers / n=0

Signal stateinsufficientRule-based classification

As ofAug 30, 2026Latest evidence check

01 / Current window

Observed prevalence

Jun 16n=0Jul 1n=5Jul 16n=5Jul 31n=5Aug 15n=5Aug 30n=6

Empty time buckets are shown as zero and retain their sample size; they are not interpolated by AI.

02 / Market separation

Source breakdown

Amazon Bestsellers1 / 812.5%

Amazon New Releases0 / 60%

Traditional Publishers0 / 60%

Indie Authors0 / 60%

03 / Underlying evidence

1 matching covers.

These are the records counted in the current prevalence numerator.

I Want You GoneMiranda Rijks

Amazon Bestsellers

I Want You Gone

Miranda Rijks

Inspect evidence

04 / Evidence interpretation

What it may mean.

Deterministic previewevidence-interpreter-v1

exploratory confidence

Interpretive summary

Serif title increased from 0% to 3.8% across comparable 90-day windows, a 3.8 percentage-point upward movement. The current matches are concentrated in Amazon Bestsellers.

Market context

Amazon Bestsellers has the highest current prevalence at 12.5% (1 of 8), while Indie Authors is lowest at 0% (0 of 6).

What to investigate

Inspect the matching covers alongside non-matching covers from the same source types. Look for whether serif title co-occurs with particular typography, imagery, colour, or subgenre choices before treating this as a durable convention.

Facts supplied to the interpreter

Current window: 1 matching covers from a sample of 26.

Previous window: 0 matching covers from a sample of 0.

3.8 percentage points of measured upward movement.