All markets · 90-day comparable periods
Empty time buckets are shown as zero and retain their sample size; they are not interpolated by AI.
These are the records counted in the current prevalence numerator.
Julia Rook
Inspect evidenceOwen Slate
Inspect evidenceD. M. Harrow
Inspect evidenceJonah Reed
Inspect evidenceAva Grey
Inspect evidenceObscured face increased from 0% to 19.2% across comparable 90-day windows, a 19.2 percentage-point upward movement. The feature currently appears in 4 tracked market segments.
Indie Authors has the highest current prevalence at 33.3% (2 of 6), while Amazon Bestsellers is lowest at 12.5% (1 of 8).
Inspect the matching covers alongside non-matching covers from the same source types. Look for whether obscured face co-occurs with particular typography, imagery, colour, or subgenre choices before treating this as a durable convention.
Current window: 5 matching covers from a sample of 26.
Previous window: 0 matching covers from a sample of 0.
19.2 percentage points of measured upward movement.