Sign language linguists show here that all questions relevant to the linguistic investigation of spoken languages can be asked about sign languages. Conversely, questions that sign language linguists consider - even if spoken language researchers have not asked them yet - should also be asked of spoken languages. The HSK handbook Sign Language aims to provide a concise and comprehensive overview of the state of the art in sign language linguistics. It includes 44 chapters, written by leading researchers in the field, that address issues in language typology, sign language grammar,...

Since natural languages exist in two different modalities - the visual-gestural modality of sign languages and the auditory-oral modality of spoken languages - it is obvious that all fields of research in modern linguistics will benefit from research on sign languages. Although previous studies have provided important insights into a wide range of phenomena of sign languages, there are still many aspects of sign languages that have not yet been investigated thoroughly. The structure of subordinated clauses is a case in point. The study of these complex syntactic structures in the...