This book covers different aspects of speech and language pathology and it offers a fairly comprehensive overview of the complexity and the emerging importance of the field, by identifying and re-examining, from different perspectives, a number of standard assumptions in clinical linguistics and in cognitive sciences. The papers encompass different issues in phonetics, phonology, syntax, semantics, and pragmatics, discussed with respect to deafness, stuttering, child acquisition and impairments, SLI, William’s Syndrome deficit, fluent aphasia and agrammatism. The interdisciplinary complexity of the language/cognition interface is also explored by focusing on empirical data from different languages: Bantu, Catalan, Dutch, English, German, Greek, Hebrew, Italian, Japanese, and Spanish.