In recent decades, Latin American magazines have been the object of study for historians, literary critics and art historians, allowing the identification of intellectual networks and forms of cultural intervention central in the history of Latin America. This book is inserted in this type of study, but the magazines also think about their materiality from the perspective of new materialisms, to escape the unidirectional temporalities in which the past would only affect the present from a causal or allegorical logic. The magazines of the first half of the twentieth century transformed the ways of reading, as is the case with digital today, because they knew how to incorporate into the graphic medium materialities of what was printed with which readers were affectively familiar, such as posters, clippings or calligraphy. By tracing the axes of these movements, the book seeks to insert the journals into global cartographies that show how they are built and how they function as documentation, information and graphic communication technologies.