About our sources

Each lesson is researched from named sources, which are listed with links at the end of the lesson. We prefer official and long-established authorities: government portals, national health services, recognised etiquette authorities and cultural institutions.

Every module is reviewed by a separate fact-check before publishing. Where sources disagree, or where rules may have changed, the lesson says so in a note.

Spotted something wrong? Use the “Report a mistake” button on any lesson.

Lessons are general guidance, not legal, medical or financial advice. Laws, fines and customs change; always check official sources for anything that matters.