New York University’s Elmer Holmes Bobst Library, designed by architecture greats Philip Johnson and Richard Foster, is not just home to four million volumes of books, but to a handful of students who cannot afford to live in dormitories. For this reason, portions of the library never close.

Most of these photos were taken between the hours of two and four in the morning.

Students wished to remain anonymous.

Taken for a photojournalism class, March through May 2015.