This book develops a theory of social knowledge based on dialogicality (the capacity of the human mind to conceive and communicate social reality in relation or opposition to otherness) and the theory of social representations. It argues that dialogicality is the sine qua non of the human mind and change is at the center of all social phenomena. Ivana Markova's new book brings together the concept of dialogue and social knowledge and will be an important contribution to social psychology and discourse and communication studies.