This library is part of the Regional Museum of Nayarit and has a separate entrance open to the general public.

Its collections include:

• General Collection: Works on world literature, medical sciences, education, children’s literature, business, biology, psychology, chemistry, fine arts, and geography.
• History and Geography of Nayarit Collection: Covers archaeology, ethnology, municipal histories, and literature. It includes the "Gregorio Miranda Navarrete Fund."
• Ethnic Groups of Nayarit Collection: Available in digital format.
• Specialized Collection: Includes books on anthropology, archaeology, ethnology, Mexican history, architecture, and restoration.
• Periodicals Collection: Contains various regularly published journals and magazines, such as "Arqueología Mexicana, Istor, Este País, Historia Mexicana, Nexos, Proceso, Tierra Adentro, Relatos e Historias de México, Comercio Exterior, Estudios Jaliscienses, Biodiversitat, Eco Frontera, Nueva Antropología, Antropología, Dimensión Antropológica, Cuicuilco, Anales del INAH, Mesoamérica, Boletín de Monumentos Históricos, Voces de México, Ciencia y Desarrollo", and more.
• INEGI Collection: Part of the National Network for External Consultation from INEGI (National Institute of Statistics and Geography).
• Historical Documentary Collection: Includes books related to administrative, legal, and political matters in the region now known as Nayarit, with some documents dating back to the 18th century and most from the 19th and early 20th centuries.
• INAH Nayarit Photographic Archive: Contains materials from 48 exhibitions in various formats, around 10,000 printed and digitized photographs, and a significant number of negatives (yet to be fully quantified), along with bibliographic and periodical resources.