All markets · 7-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.
Mara Voss
Inspect evidenceElias North
Inspect evidenceEmily Shiner
Inspect evidenceMiranda Rijks
Inspect evidenceYellow typography increased from 50% to 100% across comparable 7-day windows, a 50 percentage-point upward movement. The feature currently appears in 2 tracked market segments.
Amazon Bestsellers has the highest current prevalence at 100% (2 of 2), while Amazon New Releases is lowest at 100% (2 of 2).
Inspect the matching covers alongside non-matching covers from the same source types. Look for whether yellow typography co-occurs with particular typography, imagery, colour, or subgenre choices before treating this as a durable convention.
Current window: 4 matching covers from a sample of 4.
Previous window: 1 matching covers from a sample of 2.
50 percentage points of measured upward movement.