In this third volume of the “Online Handbook of Language Criticism – A European Perspective”, linguistic purism is being understood as both criticism of language usage on the level of parole and criticism of forms and structures of a language on the level of langue. The articles in this volume illustrate in comparative perspective in which constellations of languages linguis-tic purism in German, English, French, Italian, and Croatian was relevant in the past, and still is today, how the individual languages were and are aff ected by language-puristic activities, and which actors and discourses have formed and framed language-puristic activities in the diff erent language cultures.