Handwriting That Survives the Mail: Pens, Ink, and Legibility

This is the second post in our series on the physical postcard. Last week covered layout: where the message goes, where the address goes, and how many words fit on a 4x6. This week is about the ink.

A postcard travels naked. No envelope. It goes through sorting machines, gets stacked under other mail, rides in a truck, and sometimes gets rained on between the mailbox and the front door. Whatever a volunteer writes has to survive all of that and still be readable by a stranger giving it three seconds. Most cards that fail do so for one of two boring reasons: the wrong pen, or handwriting the voter cannot read.

Pens that smear and pens that don’t

Most printed postcards have a coated or semi-gloss finish, at least on the front, and some are coated on both sides. Ink that would soak into plain paper sits on top of a coating instead, and anything sitting on top can be smeared by a thumb, a sorting belt, or the next card in the stack.

Gel pens are the worst offenders. The ink is wet, it dries slowly on coated stock, and it smears if a volunteer stacks the card before it sets. They are also the pen most volunteers bring from home, which is why you should have other pens on the table.

Regular Sharpies (the fine point, not the ultra-fine) bleed. On thin stock they show through to the other side and turn a clean address block into a smudge. They also write so wide that a 45-word message will not fit.

Ballpoint pens hold up. The ink is oil-based, dries on contact, and does not run in water. The downside is that ballpoint lines are thin and light. Pick a medium point over a fine one.

Fine felt-tip pens are the sweet spot. Paper Mate Flair is widely used by postcard groups, and for good reason: the water-based ink dries fast, it does not bleed through, and the line is dark and wide enough to read easily. Sharpie Ultra Fine is the other common choice. Seniors Taking Action recommends it specifically because it does not run or smear.

Buy a box of Flairs or Ultra Fines for every writing party. Black and dark blue for the address side. If volunteers want color for the message, fine, as long as it is dark enough to read.

The address is not decoration

The address block has one reader, and it is a machine.

USPS runs every postcard past an optical scanner that reads the address and sprays a barcode along the bottom edge. If the scanner cannot read the address, the card goes to a human, which costs time. If the human cannot read it either, it comes back to you or goes nowhere.

Three rules make the scanner happy. Use black or dark blue ink for the address, nothing else. Print, do not write cursive, and leave a clear gap between the name line, the street line, and the city-state-ZIP line. And keep the bottom five-eighths of an inch of the card completely empty, the full width, because that is where the barcode goes. The Domestic Mail Manual defines that clear zone, and anything a volunteer writes there, including a signature that drifts down, can be sprayed over or misread.

If your program uses printed address labels, this whole section is handled for you. If your volunteers hand-address, which most do, put the address rules on the table and say them out loud at the start of every party.

A legibility standard without policing

Handwriting is the whole reason the card works. But a card the voter cannot decipher is a wasted stamp, and Indivisible Eastside is right that an unreadable card can do more harm than good. You need a standard. You do not need to grade anyone’s penmanship.

The standard we give volunteers has four parts, and none of them is “write neatly.” Print if your cursive is hard to read; most people’s is, and printing still looks handwritten. Write at the size you would use on a birthday card, not the size you use in a notebook, and if the message does not fit, the script is too long and that is our problem, not yours. Leave a little air between lines, because crowded lines are the biggest cause of unreadable cards. And read the card back from arm’s length before it goes in the done pile. If you cannot read it, a stranger cannot either.

That puts the volunteer in charge of the check. Nobody at the party walks around rejecting cards. The only cards a team lead should pull are ones with writing in the barcode strip, an address in the wrong color, or an address that is plainly unreadable. Those go back to the writer with a fresh card and no fuss.

Messy is fine. A crossed-out word and uneven lines read as a real person. Perfect handwriting reads as a font.

The desk card

Print this on an index card and put one at every seat.

Before you mail a postcard

• Use the pen from the box (Flair or Sharpie Ultra Fine), not a gel pen.
• Address in black or dark blue. Print it. Leave space between lines.
• Keep the bottom strip of the card empty. Nothing goes there.
• Print your message if your cursive is hard to read.
• Write at birthday-card size. Leave air between lines.
• Read it back from arm’s length. If you can’t, rewrite it.
• Let the ink dry for a minute before you stack it.

Next week: card stock, printing options, and what a postcard actually costs, with a worked budget for 5,000 cards.