Hernando de Soto's best-selling book The Mystery of Capital argues that economically disadvantaged countries lack institutional arrangements that can spur economic development and capital growth. This article questions de Soto's institutional economist account. It draws on a 14-month ethnographic study performed at two rural field sites in Colombia and in the central government office responsible for promoting land programmes designed to improve the living conditions of rural communities. This study, which focuses on the daily practices of public officials and rural campesinos, suggests the importance of the title document, and in particular the public deed, for land ownership. It describes the process by which landownership is created by the issuance of the land title document and highlights some important elements and untended consequences that are often neglected in this process of making land a legal and economic asset.