Abstract: ABSTRACT: This article presents an in-depth study of international indicators of media literacy in its most relevant contexts. The essay analyzes the main dimensions necessary to be taken into account as the starting point to measure, develop or foster media literacy for students or adults in any scenario. The UNESCO, European, and Australian framework are the three contexts studied as significant contributors to media literacy development. After the analysis, the conclusions focus on four specific indicators that are common to the three contexts studied. These four issues constitute the starting point for every research or researcher interested on media literacy studies.