Lehrbuch; Arbeitsbuch; Course book; Textbook; Workbook; Übungsbuch; Introductions (to linguistics) ; Language teaching ; Norm of interaction; Regel (pragm.) ; Rule (pragm.) ; Interactional norm ; Language and sex; Gender studies; Metrosexuality; Language and gender ; Language and power; Power and language; Dominance and language; Herrschaft und Sprache; Logocracy; Language ownership; Language and domination ; Kulturvergleich; Language and culture ; Sociology of translation; Language and social studies ; Bilingual education ; Language variation/Dialectology