The book explores the role of age in communication under consideration of various age groups (the elderly, middle-aged, teenagers, children), genres, cultures and languages. The social skewing of the contributions explains the book's focus on discourse-mediated social identities, with age implicated as a viable controller of how social action is strategically deployed for alignment and alienation, accommodation and divergence. The studies in the book show the particular importance of the discursive construction of age in the face of new challenges of globalization, increased human mobility and rising intergenerational conflicts.