Interpersonal communication (IC) is a continuous game between the interactants. It is a give and take - a continuous, dynamic flow that is linguistically realized as discourse as an on-going sequence of interactants' moves. Interpersonal communication is produced and interpreted by , and this makes it a fascinating research area. The handbook, , examines how interactants manage to exchange facts, ideas, views, opinions, beliefs, emotion, etc. by using the linguistic systems and the resources they offer. In interpersonal communication, the fine-tuning of individuals' use of the linguistic resources is continuously probed. The language used in interpersonal communication enhances social relations between interactants and keeps the interaction on the normal track. When interaction gets off the track, linguistic miscommunication may also destroy social relationships. This volume is essentially concerned with this fine-tuning in discourse, and how it is achieved among various interactant groups.