SkillsLib.ai

Nonfiction Proposal Evaluator

Evaluate nonfiction proposals and get publisher-ready feedback instantly

3.3(3 reviews)
100+ downloads
Updated Sep 2026

What You Can Do

You can submit your nonfiction manuscript or proposal and receive a comprehensive editorial evaluation that assesses market viability, identifies structural gaps, and pinpoints what needs development before querying agents or publishers. The skill analyzes your work against current market trends, competitive titles, and publishing standards—then generates actionable feedback in minutes instead of waiting weeks for professional editors.

Features

Market Viability Assessment

Evaluates your proposal's commercial potential by analyzing current market demand, audience size, and positioning against comparable titles.

Structural Gap Analysis

Identifies missing chapters, underdeveloped sections, logical inconsistencies, and pacing issues that could weaken publisher appeal.

Publisher-Ready Scoring

Provides a clear overall assessment score with a breakdown of strengths and critical weaknesses that need addressing before submission.

Competitive Positioning Report

Analyzes your manuscript against similar published titles to identify your unique angle and highlight competitive advantages.

Development Roadmap Generator

Creates a prioritized list of specific revisions and improvements with estimated effort levels for each recommendation.

Audience Targeting Analysis

Assesses how clearly you've identified and addressed your target reader, including demographic alignment and market reach.

Content Quality Evaluation

Reviews writing quality, narrative clarity, fact accuracy (for verifiable claims), and adherence to nonfiction publishing conventions.

Example Output

Publisher-Ready Assessment: "The Hidden History of Space Exploration" (Proposal)

Overall Score: 7.2/10 — Publishable with revisions

Strengths:

  • ✓ Strong narrative voice and engaging anecdotes
  • ✓ Clear unique angle: personal correspondence angle not covered in competing titles
  • ✓ Well-defined target audience (history buffs + STEM professionals)

Critical Gaps:

  • Chapter 4 (Women in Mission Control) feels underdeveloped—expand from 8 to 15 pages with primary source interviews
  • Missing epilogue that connects historical themes to modern space initiatives
  • Competitive title Hidden Cosmos (2023) covers similar ground—strengthen your differentiation

Market Position: Good fit for trade publishers focused on popular history. Sapiens-style accessible scholarship trending upward. Comp titles (Last Humans, Beneath the Stars) reached moderate success ($50K-150K advances).

Next Steps: Expand primary sources, add modern-day interviews, revise positioning statement before agent queries.

What's Included

  • Editorial Evaluation Framework: Comprehensive rubric assessing structure, narrative quality, market fit, and development stage across 15+ dimensions.
  • Publisher-Readiness Scoring System: Quantitative 1-10 scale with breakdown by category (writing quality, market appeal, competitive positioning, development status).
  • Development Priority Roadmap: Ranked list of specific revisions with effort estimates (quick wins vs. major rewrites) and rationale for each recommendation.
  • Competitive Landscape Analysis: Assessment of 3-5 comparable published titles, market trends, and positioning recommendations to differentiate your work.
  • Audience & Market Assessment: Analysis of your target reader definition, market size, and current demand for your topic in traditional publishing.
  • Submission-Ready Checklist: Clear action items organized by priority, timeline estimates, and guidance on which revisions are essential vs. nice-to-have.

Who It's For

  • Nonfiction Authors
  • Literary Agents
  • Publishing Consultants
  • Acquisitions Editors
  • Book Coaches

Best For

  • Pre-submission proposal evaluation before querying agents
  • Identifying development gaps in early-stage manuscripts
  • Competitive landscape research and positioning strategy
  • Publisher-readiness assessment after completing a draft
  • Rapid feedback on whether a project has commercial viability

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