This chapter examines the symbolic significance of Costa Rican mace heads and analyzes their involvement in information exchange. This research approaches mace heads as channels for symbolic information exchange rather than as utilitarian objects or mortuary grave goods. The justification for such an approach is based upon the assumptions which underlie archaeological stylistic analysis. Theoretical discussion draws upon semiological anthropology to establish mace heads as bearers of symbolic information. Within this context, information theory provides the analytical framework by which the communication process can be observed. The data suggest that mace heads served to distinguish social rank within the same settlement, and were also involved in social signaling between settlements and regions.