Contents -- Editorial Advisory Board -- Foreword -- Introduction -- Sociolinguistic Variation and Sign Languages: A Framework for Research -- Collecting and Analyzing an ASL Corpus -- The Sociohistorical Context for ASL Variation -- Phonological Variation 1: Variation in Handshape -- Phonological Variation 2: Variation in Location -- Grammatical and Social Conditioning of Phonological Variation -- Syntactic Variation: Null Pronoun Variation in ASL Narratives -- Lexical Variation -- Sociolinguistic Variation in American Sign Language -- Appendix A: Transcription Conventions -- Appendix B: Sign Variants -- References -- Index.