Although it does not appear on the piece, according to the CUP Website, this is the first publication in the series "Making policy public".

"The Cargo Chain is an organizing tool for longshore workers that shows the players and pressure points in today's globalized shipping network. How do commodities get from factory to shopping mall? Who really has the power to move today's global economy? This publication was produced through a collaboration between the Longshore Workers Coalition, Labor Notes (a quarterly journal of labor journalism and research), cartographer Bill Rankin, and the graphic design office Thumb." --Publisher's webpage.