Upon graduating from ECAL/University of Art and Design Lausanne, in 2004, Aurèle Sack (*1977) went to work in Zurich. At NORM, where he had already interned during his studies, he contributed to the elaboration of a corporate typeface for Swiss watchmaker Omega, as well as to developing LL Purple (2006).

After returning to ECAL in 2010 to teach type design and editorial design, Aurèle became a typographic household name with the publication of his LL Brown (2011), a highly successful and versatile geometric Sans Serif family. He served as a consultant for the redesign of Vogue Homme International, bringing in LL Brown and a new custom development, called Turquoise. He followed up with his third typeface named after a colour, LL Grey (released in 2018).

His type designs won Aurèle the maximum number of three Swiss Design Awards. Focussing on further developing his LL Brown super family, he expanded it to Cyrillic, Greek, Vietnamese, Hebrew and Arabic scripts, and added Narrow, Condensed, and decorative styles. Aurèle has also created many bespoke typefaces, such as for Swissquote, the successful fintech startup, or for Globus, the luxury department stores.

More recently, he returned to LL Brown to develop it into variable fonts, in the course bringing back the reclining italics which had been part of the inital offering of LL Brown back in 2011.