This handbook focuses on the interpersonal aspects of language in use, exploring key concepts such as face, im/politeness, identity, or gender, as well as mitigation, respect/deference, and humour in a variety of settings. The volume includes theoretical overviews as well as empirical studies from experts in a range of disciplines within linguistics and communication studies and provides a multifaceted perspective on both theoretical and applied approaches to the role of language in relational work.