Photographs of workers in Philadelphia's Municipal Offices, made by photographer Ryan Collerd
Images of caregivers at work in their offices and in the homes of the elderly clients they serve, made by photographer Amanda Swinhart
Images of the busiest port for deep-draft vessels in the United States, made by photographer Daniel Kramer
Observations of the daily journeys made by workers in big cities from photographer Cassandra Zampini
Images of urban agriculture programs by photographer Preston Gannaway
A photo essay about educators in Chicago comes from Chicago-based documentary photographer Marc Monaghan.