ISSI Guestbook
The ISSI Guestbook
Published: 08 September 2026

The ISSI Guestbook

by Fabio Crameri

Coffee-Break Corner
Highlights
Science art
ISSI
ISSI Staff
International Team
Working Group

Where Nobel-Calibre Minds Meet Crayons

A highly unscientific investigation into the most artistic corner of Hallerstrasse 6

Every year, somewhere around a thousand scientists pass through ISSI’s doors. Astrophysicists fresh off a redshift argument, climate scientists still smelling faintly of glacier, heliophysicists who insist the Sun is “actually very calm, most of the time”, and planetary scientists quietly convinced that whichever moon they currently study is the most interesting object in the Solar System. They come from every continent, in every discipline ISSI covers, for Workshops (or even Breakthrough Workshops), Fora, International Teams, and Working Groups. They argue, they calculate, they discover, they eat far too much Swiss chocolate in the coffee corner.

And then, before they leave… almost all of them pick up a pen.

Because tucked in the corner of ISSI sits an unassuming but quietly legendary object: the ISSI Guestbook. Page after page, team after team, year after year, our visitors leave behind a signature, a note, a doodle, or,  in a small number of magnificent cases, something that can only be described as fine art with a fountain pen.

Naturally, the people who watch this happen most closely are ISSI’s own staff. And naturally, they have opinions.