This book introduces the Historical Memory Toolbox and presents its contents. In addition to the prologue, the acknowledgment to teachers and students who have been part of this process and the account of the construction of the Toolbox since 2012, includes a text that collects the theoretical and conceptual foundations of the Tool Box, "Keys to navigate through historical memory" and another text with the pedagogical proposal that underlies all the materials in the Box, called "Pedagogy of historical memory: route to work in school".