The project “Perceptions of Language Contact and Linguistic Diversity in Spanish Grammar Books 1820-1875” aims to carry out the first thorough analysis of Spanish Grammar Books printed in Catalonia during this period. There are two main research questions: a) how do the Grammars depict the contact between Spanish (national language of Spain) and Catalan (autochthon language of Catalonia) and b) how do they reflect linguistic variation and language diversity? The metalinguistic reflections, which are derived mainly from the paratexts of the Grammar books, will be classified in order to reach conclusions about how the linguistic environment was perceived and what the authors’ views on it were. The results will help us to reconsider the process of minorisation among the Catalan-speaking community during the 19th century and to refine traditional beliefs and opinions about the rise of language conflict in this period.