Collection guides

Practical help with printings, collection imports and reference prices.

• Collecting helpPokemon card numbers and printings: what to trackThe difference between a named card, a numbered set entry and an exact printing, with real examples from the MasterThis catalog.Published October 13, 2026
• Collecting helpBring your collection into MasterThisImport a collection from screenshots, a PDF, pasted text, a saved page or a CSV, check every match, and undo if needed.Published October 13, 2026
• Collecting helpUnderstanding raw and PSA 10 reference pricesWhat the raw market reference and the PSA 10 estimate cover, why missing prices are not zero, and how quantities add up in a collection value.Published October 13, 2026