Introduction, Marilyn Shatz and Louise C. WilkinsonI. Early Language Experience and School Readiness1. The Brain and Language Acquisition: Variation in Language Knowledge and Readiness for Education, Barbara T. Conboy2. The Process of Acquiring a First and Second Language, Kathryn Kohnert and Giang Pham3. Language Choice and Competence: Code Switching and Issues of Social Identity in Young Bilingual Children, Iliana Reyes and Susan M. Ervin-TrippII. Language and Literacy Principles and Practices in School4. Ways to Words: Learning a Second-Language Vocabulary, Lisa M. Bedore, Elizabeth D. Pena, and Karin Boerger5. The Role of Phonology in Orthographically Different Languages, Ellen H. Newman6. Bilingualism and Cognitive Linkages: Learning to Read in Different Languages, Ellen Bialystok and Kathleen F. Peets7. Learning English as a Second Language, Maria Estela BriskIII. Assessment and Interaction: Working with Children and Families8. Communicative Repertoires and English Language Learners, Betsy Rymes9. Difficulty, Delay, or Disorder: What Makes English Hard for English Language Learners?, Carol Westby and Deborah A. Hwa-Froelich10. Implications for Assessment and Instruction, Alison L. Bailey11. Extended Implications for Practice: Families as Allies, Leslie Reese and Claude Goldenberg12. Recent Research on English Language and Literacy Instruction: What We Have Learned to Guide Practice for English Language Learners in the 21st Century, Diane August, Claude Goldenberg, William M. Saunders, and Cheryl Dressler