Expanded to a full city block in 1997 and renovated in 2010, the Main Library is a 135,000-square-foot limestone building located in downtown Bloomington near Indiana University.

The Bloomington library was one of four in the United States to install a Randtriever, a first generation automated storage and retrieval system.

The system, built by Sperry Rand, was removed by the mid 1980s, due to maintenance costs and problems with the supplier.

The bookmobile travels to elementary schools, many apartment complexes, and towns in Monroe County without their own library branch.

The book bike was purchased in order to increase access to Library Programs and WiFi in areas where the Bookmobile cannot travel.

The main branch of the library has a collection specifically geared toward the VITAL program.