Top 10 Secrets In A Deck Of Playing Cards

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A deck of playing cards may look simple, but hidden among the pips, suits, numbers and portraits are surprising secrets, some of which are hundreds of years old.

That box of pasteboards in bold, primary colors is one of the most recognizable things in the world, but the more we look, the more it seems like those cards are filled with mystery.

Cards are special things. Each deck is a marvel of engineering, design and history, loaded with secrets that have been whispered and distorted with each retelling. Here are 10 secrets about a standard deck of playing cards that have been hiding in plain sight all this time.

10. Snap

playing cards

Fact: It is glue, not plastic, that makes playing cards “snap”.

Contrary to popular belief, it is glue that makes playing cards snap, not plastic. Quality playing cards are known for their feel, spring and snap. The tension and elasticity is important for the durability and feel of each card. But while cards feature a plastic coating (usually dimpled, to give a little bit of a slide), it’s layers of glue that give each card its backbone.

Each card is like an Oreo, where laminated sheets of cardboard are the cookies and glue is the cream filling. The combination provides a curiously strong, thin and pliant piece of paper perfect for a shuffle or a trick.

Bonus detail: The plastic surface on the paper does not completely enclose each card. The sheets of cardboard are laminated before the gluing process. You can spill a drop of water directly on the center for a few seconds without ruining the card, but if the water gets to the edge? Ruined. The water seeps into the card’s paper like a sponge.

9. Back Design

Fact: There are two major kinds of backs, and that’s a big deal to card workers, magicians and casinos

Most decks of cards feature a wide variety of back designs. But the nicer, more durable decks are a bit more simple. Usually toned with only one or two colors, they feature symmetrical designs.

There’s a key feature that magicians look for: Borders. Does a card’s back design go all the way to the edge of a card? Or is there a border? Without giving away too many tricks of the trade, both of those design options hide different things.

Those different kinds of backs also are a big deal for casino operators, who go through tremendous expense to fight against cheats and scams. The U.S. Playing Card Co. doesn’t really discuss backs much with normal customers, but if a customer has a casino, the company has plenty to advertise about what kinds of backs are better for different games.

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