How the Imprimatur Index is built.

A transparent rating system for literary intermediaries — agencies, publishers, imprints, adaptation studios, prizes, and magazines. Six data sources. Five weighted subscores. Quarterly refresh. Institutions cannot pay to improve their grade — methodology and source data are published in full.

/ 01

Guiding Principles.

The Imprimatur Index exists to answer a single question for authors, agents, and producers: which literary intermediaries actually compound author careers — and which extract from them?

  1. Public records + payment-rate disclosure. Every input sourced from publicly available author payment-rate disclosures, BookScan / NPD Book sales data, PACER author-publisher disputes, Hollywood adaptation production records, trade press (Publishers Weekly, Publishers Lunch), and Hard Shiver's editorial-cohort framework.
  2. Institutions cannot pay. No rated institution has paid, can pay, or has been offered the opportunity to pay for inclusion, exclusion, or modification of their grade.
  3. Quarterly refresh. Grades update every 90 days; material events trigger interim updates.
  4. Subscore transparency. Every grade decomposes into five public subscores.
  5. Right of correction. Institutions may submit documented corrections via published Appeals process.
/ 02

The Six Data Sources.

/ Source 01

Author Payment-Rate Disclosure

Author Guild surveys + author payment-disclosure databases. Critical for Author Treatment subscore.

/ Source 02

BookScan + NPD Book Sales Data

Industry-standard book sales tracking. Source for Sales / Distribution Reach subscore.

/ Source 03

PACER Federal Court Filings

Author-publisher disputes, royalty audits, contract enforcement litigation. Critical for risk-band classification.

/ Source 04

Hollywood Adaptation Records

Production company filings, IMDb production records, trade press (Hollywood Reporter, Variety, Deadline). Critical for Adaptation Track Record subscore.

/ Source 05

Trade Press

Publishers Weekly, Publishers Lunch, The Bookseller (UK). Industry-perspective benchmarking.

/ Source 06

Hard Shiver Editorial-Cohort Framework

Hard Shiver's published anonymized opt-in editorial-cohort feedback on intermediary experience.

/ 03

The Five Subscores.

Author Treatment

Royalty rates, advance norms, contract clarity. Right-of-reversion practices. Audit-rights enforcement. The author-economics dimension.

Editorial Quality

Selection rigor, editorial-craft depth, list curation. Substantive vs. line editing. The literary-craft dimension.

Sales / Distribution Reach

Actual market impact: BookScan + NPD sales velocity, distribution depth, international rights placement.

Adaptation Track Record

IP sale-through to screen + stage + audio. Studio relationship depth. The IP-monetization dimension.

Rights Posture

Author retention vs. acquisition aggressiveness. Reversion clauses. Subsidiary rights handling. The author-IP-protection dimension.

/ 04

Weighting & Scoring.

Subscore Dimension
Weight
Author Treatment
25%
Editorial Quality
22%
Sales / Distribution Reach
20%
Rights Posture
18%
Adaptation Track Record
15%
Composite Score
100%

Why these weights? Author Treatment is heaviest because royalty rates + contract clarity directly determine the author's economic position over the life of the work. Editorial Quality second because editorial craft determines the literary work itself. Sales / Distribution Reach and Rights Posture complete the institutional-quality assessment. Adaptation Track Record is meaningful but bounded — many serious literary works are not optimized for adaptation.

Independent data. Independent standards.

The Imprimatur Index is published under a methodology reproducible from public-record sources. Institutions cannot pay to improve grades. The data is licensed to institutional users via the API.

Browse the Index Institutional API