Human beings have for millennia developed public works to allow themselves to congregate. This book provides a roadmap for local historians who are interested in exploring public works as a part of their community's history. It begins by examining structures within specific communities, to introduce the kinds of facilities that are identifiable as public works. Then the basic tools available for exploring their history are identified. Other sections of the book focus on the networks that tie homes to communities, as well as those that tie individual communities to regions.