The State Library of New South Wales, part of which is known as the Mitchell Library, is a large heritage-listed special collections, reference and research library open to the public and is one of the oldest libraries in Australia. Established in 1869 its collections date back to the Australian Subscription Library established in the colony of New South Wales in 1826. The library is located on the corner of Macquarie Street and Shakespeare Place, in the Sydney central business district adjacent to the Domain and the Royal Botanic Gardens, in the City of Sydney. The library is a member of the National and State Libraries Australia (NSLA) consortium.

The Sydney central business district (CBD) is the historical and main commercial centre of Sydney. The CBD is Sydney's city centre, or Sydney City, and the two terms are used interchangeably. Colloquially, the CBD or city centre is often referred to simply as "Town" or "the City". The Sydney city centre extends southwards for about 3 km (2 mi) from Sydney Cove, the point of first European settlement in which the Sydney region was initially established.