Declan Kiely, NYPL

Here's the first page of a manuscript draft for Riis's book How the Other Half Lives: Studies Among the Tenements of New York.

On a strip of green tape fastened to the back of the painting Warhol wrote, probably with a black Sharpie pen: "To Truman Love Andy ’78."

“I submit this as my idea of an appealing commercial cover expressive of the book," Kerouac wrote.

Hine’s iconic photograph captures a young ironworker (he referred to them affectionately as “Sky Boys”) working high above Midtown.