How to do a thumb fan

In a thumb fan, one hand holds the deck loosely and acts as the pivot, and the other thumb sweeps the cards around in an arc. Shift the top cards slightly before you sweep, keep the pressure gentle so the cards don’t clump, and aim for a full half circle. Close it in one smooth sweep, then square up.

What is a thumb fan?

The thumb fan spreads a deck into an arc using one thumb as the engine and the other hand as a hinge. Wikipedia’s cardistry article calls the “index/thumb fan” the most fundamental move in its category of fans and spreads, and lists the thumb fan, along with the Charlier cut and the riffle shuffle, among the moves magicians often performed “as a way of demonstrating sleight of hand.”

It is also practical. One Instructables guide describes it as “a cool way to have some one pick a card or just use it as a flourish.” Card tutorial site December Boys sums up the learning curve: “Just like a pass in football, this move is easy to get a grasp of, but difficult to master perfectly.”

Our broader guide on how to fan a deck of cards compares the thumb fan with the pressure fan and the one-handed fan. This post zooms in on the thumb fan alone.

How do you hold the deck?

These steps are for a right-handed person. Swap hands if you’re left-handed.

• Loose, not tight. wikiHow says to “Hold the deck of cards loosely between your left thumb and fingers.”
• The left thumb is the hinge. Every card turns around the spot under your left thumb. wikiHow describes the cards “pivoting around your left thumb.”
• Faces or backs? Our suggestion: practise with the faces toward you, so you can see how evenly the indexes are spaced. Turn the deck round once the spacing looks right.

How do you do the thumb fan?

1. Stagger the top cards. wikiHow’s tip: “Shift the top of the deck slightly, so the top cards are very slightly more to the right than the cards beneath them.” That small step gives your thumb something to push against.
2. Place your right thumb. Rest the pad of your right thumb against the deck, ready to push the staggered cards.
3. Sweep the arc. Move your right thumb around to the right in one smooth arc, pressing lightly. The cards spread out, pivoting around your left thumb.
4. Finish wide. wikiHow says: “Ideally, you should finish the fan with the cards spread out in a full 180º semicircle.” A smaller fan is fine while you learn.
5. Close it. To put the deck back together, sweep the cards closed, “moving the cards in the same direction as the fan to put them back into one stack,” as wikiHow puts it. Square the deck before your next try.

December Boys also teaches a one-handed closure for the thumb fan, and notes that “the principle used in this fan is applied in many other advanced fans and moves in cardistry.” Get the basic version smooth first.

Why does my fan look uneven?

• The cards come out in chunks. You’re pressing too hard. wikiHow says to keep the pressure “gentle enough that the cards spread out in an even fan instead of clumping together in chunks.”
• The whole deck turns as one block. Our suggestion: the left thumb is too loose to act as a hinge. Firm it up a little at the pivot, but keep the rest of the grip relaxed.
• There’s a gap in the middle. Our suggestion: keep the sweep moving at an even speed. Stopping halfway tends to leave a hole.
• It used to work and now it doesn’t. Check the deck. wikiHow says to “Replace your deck if the cards become more difficult to fan. Worn cards may not spread as evenly,” and to avoid “decks with torn edges or sticky stains.” Our guide on looking after a deck of playing cards helps a deck last longer.

How long does it take to learn?

There’s no set time. wikiHow’s reminder is a fair one: “Magicians make fanning cards look easy, but they’ve put in many hours of practice.” Short, regular sessions help more than one long one. For a routine that sticks, read how to practise magic.

Once your fan is steady, try pairing it with a ribbon spread turnover on the table, so you have one flourish in the hands and one on the mat.

What helps you take it further?

• Royal Road To Card Magic with R. Paul Wilson. A download course built on Hugard and Braue’s book. The flourishes section of Volume 1 lists The Fan, One Hand Fan and One Thumb Fan, alongside the ruffle, the spread and turnover and springing the cards.
• The Art of Magic by T. Nelson Downs. A free 364-page PDF from 1909 whose flourishes chapter covers the card fan, springing the cards and throwing cards.

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