The Tramp Printers: Forgotten Trails of the Travelling Typographers by Charles Overbeck at Eberhardt Press.
Overbeck’s book takes a look at the rise and fall of tramp printers at the turn of the Twentieth Century.
Tramp printers were the original freelancers, traversing the country and sometimes even the world looking for work.
More often than not, tramp printers were union members. Union membership guaranteed printers a job at any shop with a union contract, allowing them the freedom to travel as well as the stability that comes with employment.