This is not an in-depth booklet on the holdings of any one facility in Philadelphia, but rather tips on where to look, when to go and how to get there. Once you understand the way the City is laid out and how the transit system works, you will be able to get between facilities in a more efficient manner. We have outlined the addresses, hours and particulars of not only the most commonly used facilities, but several repositories that are often overlooked. The web pages and e-mail addresses have been included when they are available. There is also maps, including one of City Hall.