Is Book Design an invisible Art? How is the reader considered by book designers? These questions are the starting point for this study, which aims at investigating how can a designer contribute to the process of forming new writers and readers. Design is here approached as an interdisciplinary vocational area where hybrid projects occur; encompassing different voices and identities. We work on the assumption that book designers consider three kinds of clients - the author, reader and publisher - and that only author and publisher have traditionally interfered in the designer´s work more directly, while the reader exists more as a pre-conceived notion. By and large, the reader has been disregarded by book designers. We, then, try to propose what we call a Design for Reading or Reading Design. We consider theories that deal with reception and mediation in the reading process. We use theoretians like Roger Chartier and apply them to an Ethnographic exercise carried out at the Schooling Project with Guarani Health Agents in the Native Brazilian Villages of Itaxi, Araponga, Sapukai and Rio Pequeno in the Angra dos Reis and Paraty Regions. By observing the reading process by the Guarani Agents, we raise questions on how to encompass the specific profile of such a reader in the visual project, thereby recognizing the importance of the reader and mediation in the Reading Design. We also consider some aspects of literacy in order to contribute to new reading and writing. social processes.