The present study analyzes, in Spain and Latin America, the development and foundation of the right to access information, highlighting the existence of two models at the legal level. The universalization of the law and, in general, all those issues that refer to its scope and extension are addressed in the same concluding that, in any case, the existence of constitutional recognition and laws of access to information and what their levels are “Regulatory density” is not the only data to consider to make a comprehensive balance, but it is necessary to pay attention to the degree of implementation - in particular, in relation to information management, active advertising or guarantees - and to the own citizen exercise of the right of access and the greater or lesser tradition of democracy and transparency in the different countries.