The paper analyses geography textbooks for secondary schools in terms of the quality and quantity of information about the cultural diversity of Poland. In order to do that, the author examined a couple of crucial matters. The author studied the definitions of cultural frontiers (understood as diverse in terms of nationality, ethnicity and religion areas) presented in school textbooks; the specific features of some of the Polish regions, their cultural diversity and the ways of describing them. Based on the discussed examples from geography textbooks, the author concludes that information connected with national minorities and the cultural specificity of some Polish regions practically does not appear in geography books. It is rare to find any detailed studies about the cultural diversity of the Polish nation. It should be stressed that information about national minorities is still too brief and stereotyped. One could usually find facts presented only in the form of side notes. To conclude, it can be said that the multicultural characteristics of Polish frontiers are not presented sufficiently in teaching the geography of Poland.