Expert guides, tips, and insights on card grading, collecting, and maximizing your collection's value.
Step-by-step guides for card grading submissions, packing and shipping, slab reholdering, and maximizing your grading ROI. Read the pillar guide →
Learn where to sell sports cards online in 2026. eBay (13% fees, widest reach), COMC (20-25%, bulk), Goldin/PWCC (10%, high-end), Facebook/Whatnot (0-8%, community).
Learn the Sandwich Method for packing trading cards for grading submission. Protect corners, edges, and surface during shipping to PSA, BGS, CGC, and SGC.
Card centering is measured as a ratio of border widths. PSA requires 55/45 or better for Gem Mint 10. Learn the exact measurement method with step-by-step instructions.
Pre-grade your trading cards at home before professional submission to save money and maximize ROI. Follow the 4-point inspection method: corners, edges, surface, and centering.
Card grading professionally evaluates trading card condition on a 1-10 scale. PSA, BGS, CGC, and SGC are the major graders. Graded cards sell for 2.3x to 10x more than raw cards.
A prioritized plan for what to do with your submission queue now that PSA's cheap tiers are gone: submit, hold, or reroute.
Complete card grading centering guide. Learn PSA, BGS, SGC centering standards, how to measure, and impact on card values and grades.
Complete card grading process explained step-by-step. Learn how PSA, BGS, SGC, and CGC grade cards, what they look for, and how to prepare submissions.
Complete BGS grading submission guide. Learn about Beckett grading process, costs, Black Label requirements, and how to maximize your card values.
Learn the safe methods for cleaning trading cards before grading. Covers microfiber techniques, the line between cleaning and doctoring, and handling dust and fingerprints.
The complete guide to packing and shipping trading cards for grading submission. Learn the Sandwich Method, proper supplies, and common mistakes that damage cards in transit.
Use AI to check your cards before paying for professional grading.
Start Grading Free