The book provides an introduction to an interdisciplinary field of inquiry that can be called "global linguistics" (GL). GL emerges to tackle the ever-growing phenomenon of intercultural communication (IC) in today's world of international contacts. The specific aim of GL is to look at the form and contents of dialogues among speakers of different cultural backgrounds who will use a "default language" or koiné (usually English) to interact, in order to detect communication breakdowns at various levels of "depth", as well as the opportunities for developing sound intercultural communication practice.