A collection of papers addresses a variety of issues regarding the nature and structure of sign language, gesture, and gesture systems. Articles include: "Theoretical Issues Relating Language, Gesture, and Space: An Overview" (Karen Emmorey, Judy S. Reilly); "Real, Surrogate, and Token Space: Grammatical Consequences in ASL American Sign Language" (Scott K. Liddell); "Differential Processing of Topographic and Referential Functions of Space" (Karen Emmorey, David Corina, Ursula Bellugi); "Right Brain and Gesture" (David McNeill, Laura L. Pedelty); "Spatial Mapping in Comparative Discourse Frames" (Elizabeth A. Winston); "On Narrative Discourse and Point of View in Quebec Sign Language" (Christine Poulin, Christopher Miller); "Point of View Expressed Through Shifters" (Elisabeth Engberg-Pedersen); "The Point of View Predicate in American Sign Language" (Diane Lillo-Martin); "Line Segmentation and Narrative Structure: A Study of Eyegaze Behavior in American Sign Language" (Benjamin J. Bahan, Samuel J. Supalla); "A Crosslinguistic Perspective on ASL Verb Agreement" (Wynne D. Janis); "Lexical Tense Markers in American Sign Language" (Debra Aarons, Benjamin J. Bahan, Judy Kegl, Carol Neidle); "Morpho-Syntactic Structure of Aspect and Number Inflections in ASL" (Donald S. Metlay, Ted Supalla); "The Cataclysmic Break between Gesticulation and Sign: Evidence against a Unified Continuum of Gestural Communication" (Jenny L. Singleton, Susan Goldin-Meadow, David McNeill); "The Genesis of Language: How Much Time Is Needed To Generate Arbitrary Symbols in a Sign System?" (Jill. P. Morford, Jenny L. Singleton, Susan Goldin-Meadow); "The Grammar of International Sign: A New Look at Pidgin Languages" (Ted Supalla, Rebecca Webb); "Mental Phonology and Language Comprehension, or What Does That Sign Mistake Mean?" (Rachel I. Mayberry); "When Do Modality Factors Affect the Course of Language Acquisition?" (Virginia Volterra, Jana M. Iverson); "Prelinguistic Gesture in Deaf and Hearing Infants" (Richard P. Meier, Raquel Willerman); and "The Resilience of Language: Mother-Child Interaction and Its Effect on the Gesture Systems of Chinese and American Deaf Children" (Xiao-Lei Wang, Carolyn Mylander, Susan Goldin-Meadow). (MSE)