This volume goes beyond its initial goal of transferring the findings of the research project on "Cohesion building of multiethnic societies in Europe in the 11th-21st c" into school practice. It is based on the concept of "reading like a historian" developed by Sam Wineburg at Stanford University. "Reading" includes not only traditional written sources, but also iconographic material, such as medieval miniatures, coats of arms, photographs, as well as family trees and maps. It provides easy-to-adapt ideas, questions and tools to move from superficial browsing to an in-depth critical analysis, taking into account the origin of the material, its historical context and confrontation with other documents and data.