I. THE NATURE OF LANGUAGE AND LANGUAGE DEVELOPMENT. 1. The Nature of Language and its Disorders, Deena K. Bernstein. 2. Social Cognition: The Communication Imperative, Ellenmorris Tiegerman-Farber. 3. The Ecology of the Family: The Language Imperative, Ellenmorris Tiegerman-Farber. 4. Language Development: The Preschool Years, Deena K. Bernstein. II. LANGUAGE ASSESSMENT AND INTERVENTION. 5. Language Development: The School-Age Years, Deena K. Bernstein. 6. Early Communication Assessment and Intervention: An Interactive Process, Nancy B. Robinson and Michael P. Robb. 7. Assessing Children with Language Disorders, Elaine R. Sillman and Sharon James. 8. Planning Language Intervention for Young Children, Amy L. Weiss. 9. Language Intervention in School Settings, Nickola Wolf Nelson. 10. Language and Communication Disorders in Culturally and Linguistically Diverse Children, Delores Battle. III. LANGUAGE DISORDERS AND SPECIAL POPULATIONS. 11. Understanding Learning Disabilities, Pearl L. Seidenberg. 12. Mental Retardation: Difference or Delay, Robert E. Owens, Jr. 13. Autism: Learning to Communicate, Ellenmorris Tiegerman-Farber. 14. Considerations and Implications for Habilitation of Hearing Impaired Children, Christine Radziewic and Susan Antonelles.