TCGemsMany cards are printed in more than one finish. They share the same art, name and number, but collectors treat them as different cards, and they are priced separately.
Normal
No foil at all. The whole card is matte, including the artwork. Most commons and uncommons in a pack are normal.
Holo
The artwork box is foil and shimmers when you tilt the card. The border and the text box stay flat. In most sets, holo rares are the ones with a foil picture.
Reverse holo
The opposite of a holo: the artwork stays flat, and the rest of the card is foil. Tilt the card under a light and look at the text box and the border. If they shine and the picture does not, it is a reverse holo. Many packs contain one reverse holo slot, and almost any card in a set can appear there.
Some recent sets also print special reverse holo patterns, for example a small ball pattern across the foil. Those count as separate printings too.
Full art and textured cards
Higher rarities often have art that covers the whole card, sometimes with a raised texture you can feel with your finger. These are their own printings with their own numbers, usually above the set’s main count.
Why it matters
A reverse holo and a normal copy of the same card can be worth very different amounts. When you check a price, make sure it is the price of the finish you are holding. TCGems shows the finish it matched, so you can check it at a glance.