Markets and traders in Vietnam are on the move, literally and figuratively. The chapters in this volume offer rich ethnographic exploration of daily interactions among small-scale traders, suppliers, customers, family members, neighbors, and officials within contemporary Vietnam and across its borders. These quotidian encounters occur within contested spaces, through expanding and contracting circuits of mobility, and across physical and conceptual boundaries that are fixed, yet porous. As they ply their wares and negotiate state regulations, traders shape notions of self and personhood, not just as economic actors, but also in terms of gender, region, morality, and ethnicity. Taken together, the diverse contributions to this collection demonstrate that markets form and transform through uneven interplay among global processes, state regulatory regimes, individual identities, and local trajectories of economic and social development. Rather than impede market function, these trading frictions shape the necessary ground on which new forms of political economy emerge.