Prosody is constitutive for spoken interaction. In more than 25 years, its study has grown into a full-fledged and very productive field with a sound catalogue of research methods and principles. This volume presents the state of the art, illustrates current research trends and uncovers potential directions for future research. It brings together an impressive range of internationally renowned scholars from different, yet closely related and compatible research traditions which have made a significant contribution to the field. They cover issues such as the units of language, the contextualization of actions and activities, conversational modalities and genres, the display of affect and emotion, the multimodality of interaction, language acquisition and aphasia. All contributions are based on empirical, audio- and/or video-recorded data of natural talk-in-interaction, including languages such as English, German and Japanese. The methodologies employed come from Ethnomethodology, Conversation Analysis and Interactional Linguistics.