1. Learning through language Vibeke Grøver, Paola Uccelli, Meredith L. Rowe and Elena Lieven; Part I. Learning through Language during the Preschool and Early Elementary School Years: 2. Input, interaction and learning in early language development Elena Lieven; 3. Infants want input Paul L. Harris; 4. Learning more than language through language during early childhood Meredith L. Rowe; 5. Food for thought: turning everyday family practices into opportunities to develop rich language and literacy abilities in Latino children Diana Leyva and Lauren Skorb; 6. Theory- and evidence-based language learning and teaching for young children: promoting interactive talk in the classroom Young-Suk Grace Kim and Joonmo Yun; 7. The relationship between early childhood development and later elementary school performance in Chile Andrea Rolla, Macarena Alvarado, Bernardo Atuesta, Marcela Marzolo, Ernesto Treviño, Hirokazu Yoshikawa and Marycatherine Arbour; Discussion: reflections on learning through language from infancy to preschool and early elementary school years Ageliki Nicolopoulou; Part II. Learning through Language during the Middle School and Early Adolescent Years: 8. Learning the language for school literacy: research insights and a vision for a cross-linguistic research program Paola Uccelli; 9. Observational research on vocabulary and comprehension in upper elementary school classrooms Rebecca D. Silverman and Anna M. Hartranft; 10. Improving struggling readers' literacy skills through talk about text Lowry Hemphill, James Kim and Margaret Troyer; 11. Classroom conversations as support for vocabulary learning: examining teacher talk as input for student learning Evelyn Ford-Connors and Catherine O'Connor; 12. Measurement of reading comprehension processing and growth Gina Biancarosa; Discussion 1: time, complexity, and the enduring importance of words: key themes in language learning in the middle years P. David Pearson; Discussion 2: the road - via education - to humane social relationships is driven by language (and literacy) Robert L. Selman; Part III. Learning through More than One Language: 13. Young bilinguals' extended discourse skills: the role of perspective-taking Vibeke Grøver; 14. How does vocabulary instruction during book reading help Chinese young minority children learn vocabulary in two languages? Si Chen; 15. Young monolingual and bilingual children's exposure to academic language as related to language development and school achievement: the DASH-project Paul P. M. Leseman, Lotte F. Henrichs, Elma Blom and Josje Verhagen; 16. Cross-linguistic relations among bilingual and biliterate learners C. Patrick Proctor and Qianqian Zhang-Wu; 17. Pushing the limits: dual language proficiency and reading development in the US and Canada Yuuko Uchikoshi and Stefka H. Marinova-Todd; Discussion 1: bilingualism as action Sara Rutherford-Quach and Kenji Hakuta; Discussion 2: multilingualism and socioeconomic development Robert A. LeVine.