Book excerpt: In Professionals’ Ethos and Education for Responsibility, Alfred Weinberger, Horst Biedermann, Jean-Luc Patry and Sieglinde Weyringer offer insights into different concepts and applications of professionals’ ethos focusing on teachers’ ethos. Ethos refers to the responsibility of a professional, and it is considered a key element of a professional’s work. The first time mentioned in ancient Greece denoting character and habit, the word ethos nowadays has several definitions and meanings. This book intends to explore the variety of meanings, with authors in this volume drawing from established concepts of ethos and empirical research to push the field forward.