Guides
Practical answers for collectors. Grading, buying, selling and identifying cards, with sources on every page.
Grading
What grades mean, when grading makes sense, how the major graders differ.
Buying
Reading listings, spotting reprints and fakes, paying a fair price.
Selling
Where and how to sell, fees, photos and pricing from sold data.
Identification
Figure out exactly which card, set, edition or variation you have.
Comparisons
Side-by-side: graders, marketplaces, sets and products.
All guides
1989 Upper Deck Dale Murphy Reverse Negative (#357): How to Tell and Dated Sales
How to tell the 1989 Upper Deck Dale Murphy #357 reverse negative error from the corrected card, why it's scarcer, and dated sales by grade for 2025–2026.
Updated October 7, 2026GradingCGC Pristine 10 vs Gem Mint 10: What's the Difference?
How CGC's Pristine 10 differs from its Gem Mint 10: centering, corners, labels, old 9.5 slabs, and what dated Charizard sales show about the price gap.
Updated October 7, 2026IdentificationHow to Identify Shadowless Pokémon Cards (Base Set): 6 Checks
Tell a Shadowless Base Set card from 1st Edition and Unlimited: drop shadow, text weight, Trainer copyright line, the Impostor Oak spelling and Machamp.
Updated October 7, 2026IdentificationRed Cheeks Pikachu (Base Set 58): How to Identify It and What It Sells For
Red-cheek vs yellow-cheek Base Set Pikachu: which prints have red cheeks, the E3 promo, how to spot mislabeled listings, and dated sold ranges.
Updated October 7, 2026GuideShould I Grade My Card? A 5-Step Decision Guide With Real Fee Math (2026)
Decide whether grading a card is worth it: fees as of Oct 2026, a break-even formula, worked examples from dated sales, and when not to grade.
Updated October 7, 2026