Original organized in 1967, the Santiago Library System was a cooperative arrangement designed to maximize resources by providing programs and services jointly where it is mutually beneficial to the local population.

An important SLS role was facilitating the sharing of local collections by providing delivery of materials among the member libraries. The System enhances the reference capabilities of these libraries by furnishing additional resources and expertise when needed to meet patrons’ requests. SLS presented workshops, arranged staff training programs and aided in the development of additional reference tools and services.

The Reference Center provides member libraries with second-level reference support services.

Today, the purpose of SLS continues to enrich the member libraries and communities with new resources and program that benefit communities served by the member libraries.