Methodology

Explainable evaluation, not black-box hype.

Varellium Books scores listings in layers: pre-filtering, deterministic ranking, capped AI review, then sendability gates. The goal is to surface overlooked book opportunities without pretending uncertain evidence is certain truth.

What we check

• Edition, rarity, binding, provenance, and category demand signals.
• Condition, completeness, reprint, and ambiguity risk.
• Whether a listing is safe for admin review versus public-facing preview.