Any history books you would recommend about Liechtenstein?
David Beattie’s Liechtenstein: A Modern History is excellent, detailed, and approachable. There exists an English translation of Pierre Raton’s Liechtenstein: Histoire et insitutions de la principauté, which I’ve been referencing, but it’s not a very good translation, and he’s focused a lot on the technicalities of the development of institutions and politics.
EDIT: Follow-up note: there aren’t really any others available in English (or French, I think), that I’m aware of. There are undoubtedly some in German; when my reading ability is good enough to read long texts, I may come back to this to include some of them.