Original data · weekly · aggregate-only
The Fake Book Index
Weekly aggregate statistics from Author Watch's monitoring of author-impersonation patterns across 7 Amazon marketplaces and Goodreads. Patterns, never parties: no listing titles, no publisher names, no author names - ever.
Week of 2026-09-21: 1018 listings analyzed across 0 scans · 207 findings, of which 57 carried high-similarity signals.
Findings by signal family
| Signal | Findings |
|---|---|
| name-match | 197 |
| cover-similarity | 0 |
| text-similarity | 71 |
| timing | 0 |
| publisher/commodity | 205 |
Findings by marketplace
| Marketplace | Findings |
|---|---|
| amazon.com | 48 |
| amazon.co.uk | 47 |
| goodreads | 112 |
Trailing weeks
| Week | Listings analyzed | Findings | High-similarity |
|---|---|---|---|
| 2026-09-21 | 1018 | 207 | 57 |
| 2026-09-14 | 419 | 0 | 0 |
| 2026-09-07 | 7 | 0 | 0 |
| 2026-08-31 | 6 | 2 | 2 |
| 2026-08-24 | 787 | 160 | 26 |
| 2026-08-17 | 81 | 17 | 0 |
| 2026-08-10 | 84 | 0 | 0 |
Methodology
Author Watch compares marketplace listings against monitored authors' confirmed catalogs using deterministic similarity signals: exact and near-name matching, perceptual-hash and embedding comparison of covers, text-shingle overlap of descriptions, derivative-title patterns, release-timing proximity, and commodity markers. A finding is a similarity signal requiring human confirmation - not an adjudication of any listing, publisher, or person. Only aggregates are published. Weeks run Monday-Sunday, UTC.
Use this data
Free to cite with a link: bikoosh.com/fake-book-index. Journalists: the weekly series is downloadable as CSV; questions or data requests to [email protected].
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