Weld has two book manuscripts under contract, the first with Duke University Press and the second with Hill & Wang. Her research interests encompass the social and political history of the Americas, focusing on: the Cold War in Latin America, particularly the dirty wars of the 1960s-1990s and their legacies; revolutionary movements and counterrevolutionary responses; different forms of post-conflict reckoning, including truth commissions, human rights tribunals, recovery of archives kept by past repressive regimes, and historical memory initiatives; Latin American migration and diaspora; ethnographic approaches to documents and archives in historical research.