Completely reorganized to reflect the growing intricacy of the study of ASL linguistics‎,‎ the 5th edition presents 26 units in seven parts‎.‎ Part One‎:‎ Introduction presents a revision of Defining Language and an entirely new unit‎,‎ Defining Linguistics‎.‎ Part Two‎:‎ Phonology has been completely updated with new terminology and examples‎.‎ The third part‎,‎ Morphology‎,‎ features units on building new signs‎,‎ deriving nouns from verbs‎,‎ compounds‎,‎ fingerspelling‎,‎ and numeral incorporation‎.‎ Part Four‎:‎ Syntax includes units on basic sentence types‎,‎ lexical categories‎,‎ word order‎,‎ time and aspect‎,‎ verbs‎,‎ and the function of space‎.‎ The fifth part‎,‎ Semantics‎,‎ offers updates on the meanings of individual signs and sentences‎.‎Part Six‎:‎ Language in Use showcases an entirely new section on Black ASL in the unit on Variation and Historical Change‎.‎ The units on bilingualism and language and ASL discourse have been thoroughly revised and updated‎,‎ and the Language as Art unit has been enhanced with a new section on ASL in film‎.‎ Two new readings update Part Seven‎,‎ and all text illustrations have been replaced by video stills from the expanded DVD‎.‎ Also‎,‎ signs described only with written explanations in past editions now have both photographic samples in the text and full demonstrations in the DVD‎.‎