As a multicultural and ethnically diverse nation, Brazil has singular cultural identities in accents, gastronomy and traditions, also reflected in its literature. Here, we model a multipartite network to perform cross-state comparison analyses based on the cosine distance for Brazilian reading preferences. We also explore the impact of the relationships between geographic, socioeconomic, and demographic factors and both shared books and literary genres across Brazilian states. Finally, we extract the backbone of networks to identify cultural clusters in Brazil and each of its macro-regions. Such cross-state analyses highlight the country’s rich cultural diversity, where each region shows its own identity. Our findings open opportunities to the book industry by enhancing current knowledge on social indicators related to reading preferences.