1. Children's peer talk and learning: uniting discursive, social and cultural facets of peer interaction. Editors' introduction Asta Cekaite, Shoshana Blum-Kulka, Vibeke Grøver and Eva Teubal; Part I. Children's Peer Talk and Extended Discourse: 2. 'Now I said that Danny becomes Danny again' - a multifaceted view of kindergarten children's peer argumentative discourse Sara Zadunaisky Ehrlich and Shoshana Blum-Kulka; 3. Narrative performance, peer group culture and narrative development in a preschool classroom Ageliki Nicolopoulou, Carolyn Brockmeyer Cates, Aline de Sá and Hande Ilgaz; 4. 'Let's pretend you're the wolf!' The literate character of pretend play discourse in the wake of a story Esther Vardi-Rath, Eva Teubal, Hadassah Aillenberg and Teresa Lewin; 5. Explanatory discourse and historical reasoning in children's talk: an experience of small group activity Camilla Monaco and Clotilde Pontecorvo; 6. Evaluation in pre-teenagers' informal language practices around texts from popular culture Janet Maybin; Part II. Children's Peer Talk and Second Language Learning: 7. Peer interaction, framing and literacy in preschool bilingual pretend play Amy Kyratzis; 8. Metasociolinguistic stance taking and the appropriation of bilingual identities in everyday peer language practices Ann-Carita Evaldsson and Sahlström Fritjof; 9. 'Say princess' - the challenges and affordances of young Hebrew L2 novices' interaction with their peers Shoshana Blum-Kulka and Naomi Gorbatt; 10. Language play, peer group improvisations and L2 learning Asta Cekaite and Karin Aronsson; 11. The potentials and challenges of learning words from peers in preschool. A longitudinal study of second-language learners in Norway Veslemøy Rydland, Vibeke Grøver and Joshua Lawrence; 12. What, when and how do children learn from talking with peers? Katherine Nelson.