Columbia University [Students in a crowded campus bookstore.]

Columbia University [Students in a crowded campus bookstore.]

Columbia University [Students in a crowded campus bookstore.]

Columbia University [Students in a campus bookstore.]

Columbia University [Students in a campus bookstore.]

Columbia University [Students in the campus bookstore.]

Columbia University [Students in the campus bookstore.]

Columbia University [Crowded bookstore.]

Columbia University [Crowded bookstore.]

Columbia University [Crowded bookstore.]

Columbia University [Crowded bookstore.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students talking in a stairway.]

Columbia University [Students talking in a stairway.]

Columbia University [Students in a professor's office.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]

Columbia University [Students in a bar.]