The posters are part of the #Bullshitjobs campaign, which aims to make people question whether they consider their jobs and lives meaningful.
The messages are based on the ideas of anthropologist David Graeber, whose 2013 article "On The Phenomenon of Bullshit Jobs" argued that the majority of modern employment serves no purpose other than to keep people distracted from the things they really want.
Graeber is the chap who came up with the "We Are The 99%" phrase. While he believes society would collapse if doctors, nurses or teachers stopped working, he said “it’s not entirely clear how humanity would suffer were all private equity CEOs, lobbyists, PR researchers, actuaries, telemarketers, bailiffs or legal consultants to vanish.” We can hardly argue.
Anyway, here's 13 life affirming pictures of pizza.