Methodology
How our guides are researched
Published by The Apptor, written and edited by The RookieScan Editorial Team.
Where our information comes from
Our sports card identification, sports card values, card collecting guides are built from documented references: published catalogs, recognised reference works, and reputable sale records. Where where available, from RookieScan's own aggregated, de-identified identification data. Every specific claim is grounded in a real source; we cite it on the page rather than asking you to take our word for it.
How we use AI
We use AI to help draft and organise content, but it never originates facts. Figures, dates, makers, and identifying details come from the sources above. AI only helps summarise and explain them, and a person checks the result before it is published.
About value estimates
Any value we show is an estimated range with its source and date, not a guarantee or a professional appraisal. Condition, rarity, and the market move prices, so treat estimates as a starting point and seek a qualified appraiser before buying or selling anything significant.
Corrections
We want to get this right. If you spot an error, tell us and we'll review it against the sources and update the guide.
How RookieScan content stays useful
Card identification starts with visible evidence: player, team, brand, year, set, card number, parallel or insert markings, autograph or serial numbering, and centering, corners, edges, and surface condition. Values are quoted as condition-tiered ranges pulled from public sale archives, including PSA price guide data and population reports and major auction house results. Every card page lists its sources, and figures are rechecked on a stated date so estimates stay current. Pages that touch value stay noindex until an independent editorial review pass confirms every figure against its cited sources.