The Nobel Prize in Literature was awarded for "her polyphonic writings, a monument to suffering and courage in our time"...

... to Svetlana Alexievich, of Belarus.

In an interview posted on the press’s website, Ms. Alexievich said her technique of blending journalism and literature was inspired by the Russian tradition of oral storytelling. “I decided to collect the voices from the street, the material lying about around me,” she said. “Each person offers a text of his or her own.”

“By means of her extraordinary method — a carefully composed collage of human voices — Alexievich deepens our comprehension of an entire era,” the academy said.

ADDED: What's really interesting here is that the Nobel Prize in Literature has been awarded for writing  nonfiction, though it's not purely nonfiction. It's a "mix of nonfiction and fiction."

I want to know which purely nonfiction writers have won!

While the Nobel committee has occasionally awarded the prize to nonfiction writers, including Bertrand Russell and Winston Churchill, it has been decades since a journalist or historian has won. Some prominent writers, among them the New Yorker writer Philip Gourevitch, have called for the Nobel judges to recognize nonfiction as a worthy art form.