Book excerpt: Now in its third edition and updated with new research, Later Language Development-3 reflects on an even broader age range (6-30+ years). This is an essential reference for students, professors, researchers, teachers, clinicians, and all others interested in learning about Language Development beyond the preschool years. In addition to study guide questions and three new chapters, you will find greater coverage on a wide range of important topics such as: *Critical age hypothesis *Bilingualism *Word Knowledge and use *Word definition *Derivational morphology *Discourse genres (conversational, narrative, expository, persuasive) *Verbal reasoning *Figurative Language *Humor *Sarcasm *Decoding and spelling *Reading comprehension *Written expression