Essays on Spanish linguistics and related topics are dedicated to linguist Tracy D. Terrell. An introductory section gives a brief biography and a list of his publications. Essays include: "The Natural Approach to Language Teaching: An Update" (Tracy D. Terrell); "Two Mad, Mad, Mad Worlds: Notes on Natural Approach and the Writing of 'Dos mundos'" (Magdalena Andrade, Thalia Dorwick, Jeanne Egasse, Elias Miguel Munoz); "On Breaking with Tradition: The Significance of Terrell's Natural Approach" (Armando Baltra); "The Natural Approach: How It Is Evolving" (Patricia A. Richard-Amato); "What Is Intermediate Natural Approach?" (Stephen Krashen); "Perspectives on Language Anxiety: An Interview with Tracy Terrell" (Dolly J. Young); "Attitudes, Variables, and the Affective Filter in the Acquisition of Second-Language Sound Systems" (Robert M. Hammond); "On Achieving Competence in Two Languages: The Role of Necessity for the Cuban Mariel Entrant" (Diane Ringer Uber); "French Immersion and Its Offshoots: Getting Two for One" (Merrill Swain); "Intermediate Natural Approach Beyond the Classroom: Experiential Education in Language Learning" (Peggy Hashemipour); "Cognitive Aspects of Input Processing in Second-Language Acquisition" (Bill VanPatten); "The Reading/Writing Relationship: Implications for ESL Teaching" (Ann M. Johns); "On the Need for Discourse Analysis in Curriculum Development" (Marianne Celce-Murcia); "Foreigner Talk, Baby Talk, Native Talk" (Barbara F. Freed); "Foreigner Talk as Comprehensible Input" (Terrell); "Recognition, Retention, Retrieval: The Three Rs of Vocabulary Use" (Wilga M. Rivers); "Constraints on the Aspiration and Deletion of Final /s/ in Cuban and Puerto Rican Spanish" (Terrell); "Hiato, sineresis, y sinalefa: A Sociolinguistic Updating" (Joseph H. Matluck); "The Spanish Sibilant Shift Revisited: The State of 'seseo' in Sixteenth-Century Mexico" (Giorgio Perissinotto); "On Transfer and Simplification: Verbal Clitics in Mexican-American Spanish" (Carmen Silva-Corvalan, Manuel J. Gutierrez); "Sex, Class, and Velarization: Sociolinguistic Variation in the Youth of Madrid" (Mark S. Turnham, Barbara A. Lafford); "Assertion and Presupposition in Spanish Complements" (Terrell); "Illocutionary Verbs, Subject Responsibility, and Presupposition: The Indicative vs. the Subjunctive in Spanish" (Sanford Schane); "Presupposition Inheritance and Mood in Spanish" (Errapel Mejias-Bikandi); "The NP-Based Analysis of Mood Choice in Spanish Relative Clauses" (Jorge M. Guitart); "Middle-Subjunctive Links" (Ricardo Maldonado); "The Painless Subjunctive" (Flora Klein-Andreu); "A Note on the Spanish Personal 'a'" (Ronald W. Langacker); "Spanish Tense and Aspect from a Typological Perspective" (Joan L. Bybee); and The Future of the Future in Spanish Foreign Language Textbooks" (Margaret van Naerssen). (MSE)