Agrammatic aphasia (agrammatism), resulting from brain damage to regions of the brain involved in language processing, affects grammatical aspects of language. Therefore, research examining language breakdown (and recovery) patterns in agrammatism is of great interest and importance to linguists, neurolinguists, neuropsychologists, neurologists, psycholinguists and speech and language pathologists from all over the world. Research in agrammatism, studied across languages and from different perspectives, provides information about the grammatical structures that are affected by brain damage, their nature, and how language (and the brain) recovers from brain damage. The chapters in this book focus on the symptoms that arise in agrammatic aphasia at the lexical, morphological and sentence level and address these impairments from neurolinguistic, neuropsychological and neurological perspectives. Special attention is given to methods for assessment and treatment of agrammatism and to the neurobiological changes that can result from the treatments. Perspectives on Agrammatism provides an up-to-date overview of research that has been done over the past two decades. With contributions from the most influential aphasiologists from Europe and the United States, it provides an indispensable reference for students and academics in the field of language disorders.