The authors in this collection use Vygotsky's cultural-historical theory of human development to frame their analyses of schooling, with particular emphasis on the ways in which literacy practices are mediated by social interaction and cultural artifacts. This volume extends Vygotsky's cultural-historical theoretical framework to embrace nuances of learning and development that are influenced by culture as instantiated through the experiences of race, ethnicity, and language variation. Rather than seeking to provide definitive answers to social questions using Vygotsky's core principles, the authors wrestle with educational problems through the mediation of Vygotsky's theory. In doing so, they both sharpen their focus on the problems and speak back to Vygotsky, helping to extend the foundation of his work to address modern problems. This collection serves as a form of collaborative inquiry that itself will stimulate further consideration of these topics.