Dialogic education is a relatively new force in educational theory and practice. Despite the variety of approaches to dialogic education, it nonetheless offers a coherent theory of education with implications not only for how education should be practiced but also for the purposes of education. Dialogic education takes place through dialogue which means opening up dialogic spaces in which different perspectives can clash or play together and new learning can occur. But dialogic education is not only education through dialogue, it is also education for dialogue, meaning that as a result of dialogic education learners become better at learning together with others through dialogue. The intellectual background of dialogic education theory goes back at least as far as Socrates and includes thinkers as varied as Freire, who saw dialogic education as a means of liberation from oppression, and Oakeshott, who understood education to be a process of engaging learners in their cultural inheritance, described as “the conversation of mankind.” Bakhtin, an influential source for recent dialogic educational theory, argues that meaning requires the clash and interaction of multiple voices. There are a range of approaches to implementing dialogic education, varying in the extent to which they focus on teacher to student dialogue, small group dialogues, and whole class dialogues. All approaches include some idea of (1) a dialogic orientation toward the other, characterized by an openness to the possibility of learning, and (2) social norms that support productive dialogue. Published assessments of the impact of dialogic education in relation to general thinking skills, curriculum learning gains, and conceptual understanding have been positive. However, the assessment of dialogic education raises methodological issues, and new methodologies are being developed that align better with dialogic theory and with the idea of measuring increased dialogicity, or expanded “dialogic space.” Assuming that dialogic education works to promote educational goals, various hypotheses have been suggested as to how it works, including some that focus on the co-construction of new meaning through explicit language use, others that focus more on changes in the identity of students, and others on changes in the possibilities of engagement afforded by the culture of classrooms. There are many issues and controversies raised by dialogic education. One issue is the extent to which dialogue as a goal is compatible with a curriculum that pre-specifies certain learning outcomes. Another is the extent to which teaching a set of social norms and practices promoting dialogue might be a kind of cultural imperialism that fails to recognize and value the culture of the students. These and other challenges to dialogic education are part of a lively and constructive debate in the field, which values a multiplicity of voices within the broader context of convergence on the value of teaching through dialogue and teaching for dialogue.