This chapter introduces cyberspace as a strategic domain where statecraft and governance increasingly intersect. It highlights how cyberspace has become a contested environment shaped by digital multipolarity, competing models of order, and shifting hierarchies of power. The chapter also outlines the volume’s structure, organised into four thematic clusters: the conceptual foundations of cyber power and governance; competing geopolitical strategies; regional governance experiments; and the ethical and cognitive dimensions of the digital sphere. By surveying the contributions in each cluster, the chapter underscores how the digital revolution is reshaping core ideas about statecraft, governance, leadership, and authority. As boundaries between local and global, public and private, and state and non-state actors blur, the challenge is no longer merely technical or institutional. It is to rethink how societies negotiate power, build trust, and uphold shared principles in an interconnected and rapidly evolving world.