The corporate design for the Solothurn Literary Days is based entirely on Univers Next as the corporate typeface. In the logo and on posters all the four national languages of Switzerland (German, French, Italian, Romansh) are treated equally. The spelled-out date — with letters instead of numerals — is a central element of the corporate design.
The 2016 edition uses illustrations by artist Marcel Freymond for the posters and other communication. All graphic design was done by Andrea Stebler, Thomas Berger and Thomas Hirter.