What does ‘PSA’ mean – Definition – The Sports Card Glossary
In sports cards, PSA stands for Professional Sports Authenticator, the company that checks that cards are genuine, grades their condition on a…
How to Prepare Cards for Grading (and What Not to Clean)
Last updated September 2026. This is Chapter 2 of How to Grade Sports Cards: A Step-by-Step Guide. Preparing a card for grading…