Coin grading is an essential aspect of numismatics that affects a coin's market value. Here's what collectors need to know:

1. Grading standards - Familiarize yourself with the Sheldon Scale, the standard grading system for coins, which ranges from Poor (P-1) to Perfect Mint State (MS-70).
2. The certification process - Coins are evaluated by professional grading services that assess their condition and encapsulate them in tamper-proof slabs with a grade and certification number.
3. Choosing a grading service - Select reputable grading services like PCGS or NGC, known for their stringent grading standards and consistency, to ensure your coins are accurately assessed.

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