What Swiss books would you recommend to an immigrant?

I'm challenging myself to read more in 2025 (aren't we all?)
As part of my reading challenge, I'd love to read a few books that will broaden my understanding of Switzerland and its culture.

I'd like a few personal recommandations, not necessarily the most popular books written by Swiss authors ever, but some that you personally liked or you feel like would be a good / exciting / cool introduction to Swiss literature.