My friend Bakerina describes this one very well:

The mosaic in question was designed by an artist named Barry Faulkner. He was the best friend of another artist with a Rockefeller Center commission, Paul Manship. Faulkner’s vision was to depict Thought as a god, saving the proletariat from the evils of Ignorance, Poverty, Cruelty and Fear, depicted as green coppery wraiths being flung into fiery pits. Said fiery pits are on each end of the mosaic. Averting their eyes from the pits and toward the winged seraphim beckoning them are two pairs of what are meant to be average working-class men and women (it’s the overalls that give it away). The seraphim are assigned names such as “History,” “Religion,” “Drama,” “Politics,” etc. They are all watched over by two angels, department supervisors, apparently, one named “Written Words” and one named “Spoken Words.” Between them is the big boss Thought, of indeterminate gender but dressed rather like the Virgin Mary. We are not talking about subtlety here....The best part of this mural, at least to me, is that three of the seraphim in Spoken Word’s department are named Philosophy, Hygiene and Publicity.

"Some of the images are baffling even with a key: Barry Faulkner's mosaic above the entry to the former American Metal Climax Building (a name that could have been conjured up by William S. Burroughs) shows Thought, who - through the medium of radio waves and her agents Publicity and Hygiene - delivers the working stiff (represented in a dingy tank top) from the demons of Poverty and Ignorance." -- Eric P. Nash