Human Intelligence: Why We Still Write Things Down (and Four New Leuchtturm Colours to Do It In)

October 15, 2026
LEUCHTTURM1917 Human Intelligence - New Colours 2027: Burgundy, Bubblegum, Moss and Dove
Published on  Updated on  

Press your thumb onto a page and look at what it leaves. Loops, whorls, a little arch at the top. Nobody else on earth makes that mark. LEUCHTTURM1917 put a fingerprint on the front of this year's colour campaign and called it Human Intelligence, and we think they're onto something.

The four new colours are Bubblegum, Burgundy, Moss and Dove. They've arrived at Callender Street, and they're online. But before we get to the notebooks, a word about what you do with them.

The case for writing things down

We sell pens and paper, so you'd expect us to say this. Bear with us anyway, because the evidence is better than the sales pitch.

When you write by hand you can't keep up with your own thoughts. That sounds like a flaw. It turns out to be the point. Because you can't transcribe, you have to decide what matters, rephrase it, compress it. Students who take lecture notes by hand consistently understand the material better than students who type it, even though the typists get more words down. The slowness is doing the work.

The same goes for thinking. A problem that circles endlessly in your head tends to sit still once it's on a page. You can look at it. You can draw an arrow from one bit to another. You can cross it out. Most of what we call "thinking it through" is really just getting it out where you can see it, and a notebook is the cheapest tool ever invented for that.

A page with no notifications

There's a quieter reason people are coming back to paper, and it has to do with how the day feels.

Writing a few lines each evening about what happened, what's bothering you, what you're grateful for or just what you noticed, has a reasonable body of research behind it. It won't fix anything on its own. But people who keep the habit tend to report sleeping a little better, feeling a little less wound up, and being clearer about what they actually want. The mechanism seems to be simple: naming a thing takes some of the heat out of it.

And a notebook is the one place in your life that will never buzz, badge, or suggest something else you might like to look at. You open it, it waits. For ten minutes, the only intelligence in the room is yours.

Plenty of our customers use a Leuchtturm this way. Some bullet journal with military precision. Some write three lines a night and never look back at them. Some draw. There's no right way, which is rather the point.

You've done this before

If any of this sounds new, it isn't. You learned to think on paper before you could spell. Most of us still remember the first-day-of-term pencil case, the squared maths jotter, the smell of a fresh exercise book with your name on the front. That instinct never went anywhere. It just got buried under a keyboard.

Which is why a good notebook still feels like a small event when you buy one. You're not purchasing stationery. You're giving yourself permission to start something.

The four colours

Leuchtturm's 2027 palette is calmer than last year's seventies brights. These are colours that sit together on a desk without shouting.

  • Bubblegum – a soft, cheerful pink. Not neon, not pastel. The one people pick up first.
  • Burgundy – deep wine red. The serious one. Looks right on a desk next to a fountain pen.
  • Moss – a muted, slightly yellowed green. Our favourite in the shop, for what it's worth.
  • Dove – a warm grey with a hint of blue. Goes with everything, offends nobody.

All four come across the full set: the Classic A5 Hardcover with 251 numbered pages in plain, dotted, ruled or squared; the lighter A5 Softcover with 123 pages; the Drehgriffel Nr. 1 ballpoint in matching aluminium; a self-adhesive Pen Loop so the pen stays with the book; and an HB pencil for the traditionalists.

Same 80gsm paper as always, numbered pages, table of contents, two ribbon markers, pocket in the back. The things that made the Leuchtturm a Leuchtturm haven't changed. Only the colours have.

Leave your mark

The whole range is in the New Colours 2027 collection online, and on the shelf at 4 Callender Street. Come in and hold them; the colours photograph well, but they're better in the hand.

Pick one. Write your name inside the cover. Then write something nobody asked you to.

Full disclosure: a computer helped tidy this post up. The thinking happened in a notebook first. It usually does.

Published on  Updated on  

Leave a comment

Please note, comments need to be approved before they are published.