The Biblioteca Lazzarini is the main public library, also called the Lazzerini Cultural and Documentation Institute, which was inaugurated on 24 November 2009.
It is located on Via Puccetti #3 in the Santa Chiara district of Prato, region of Tuscany, Italy.
The modern library and reading rooms were built in the building that once formed the Campolmi Factory, a 19th-century textile mill.
The first collections (8000 volumes, mainly ecclesiastical) for a town library were donated by the monsignor Alessandro Lazzerini (1766–1836).
This collection was initially held in the Biblioteca Roncioniana, however the construction of a communal libraty was delayed until 1978, when the first site at via del Ceppo Vecchio 7 were opened.