This chapter proposal is part of the line “School textbooks – Eurocentrism, nationalism and racism”. Based on school textbooks in Catalonia, it aims to analyse how the phenomenon of Spanish colonialism in Africa, specifically in Morocco and the Sahara, is still ignored. This ignorance means that aspects such as the chemical bombing of the Rif or the unpopularity of the war among the Spanish working class are not known, and how those military campaigns were vital in the formation of the mentality of the army coup plotters of 1936. Based on the cliché that Spanish colonialism was “light” and that even today, the new Law of Democratic Memory, passed in 2022, makes no mention of the colonial question, people are unaware of this part of the past. To demonstrate this, surveys were conducted among young people aged 16 to 18 in the province of Tarragona who have studied the contents of the Contemporary History of Spain. This lack of knowledge is critical to understanding the evolution of the currently tense relations between Spain and Morocco and how the colonial mentality has marked the future of Spain and is still very much present today in “imperialist” discourses, among which the “distinction” of Spanish colonial action in America and Africa is emphasised. Finally, a work proposal will be made to try to integrate the contents on Spanish colonisation in Africa, as it can be an element to combat racist discourses among young people, presenting that their Moroccan peers, one of the most essential migrant communities in Spain, have a shared past with them.