Michelle Obama's, Becoming, won the nonfiction narrative and audiobook awards at the British Book Awards organized by trade magazine, The Bookseller. The winners from each of the British Book Awards' eight categories go forward for the overall best book of the year. Judges said Becoming - chronicling Obama's life from the south side of Chicago to the White House - stood "head and shoulders above the competition" in the narrative non-fiction category.

It beat Michael Wolff's White House expose Fire and Fury to take the top spot. The audiobook version, narrated by Obama herself, beat Ben Whishaw's telling of Stephen Hawking's final book, Brief Answers to the Big Questions, and Robert Galbraith's Lethal White, narrated by Robert Glenister.

Becoming is already the best-selling audiobook of all time. Obama said it was "an incredible honor" to have received her award. "It's been such an uplifting and powerful experience to share my story with everyone across the United Kingdom these past few months," she added. "Two years ago, when I started writing this memoir, I wasn't thinking about awards; my biggest hope was simply to create something meaningful for the people who read it, something they might be able to connect to their own lives. Because I know that my story isn't unique. "It's the story of a working-class black girl learning to make music on the piano with broken keys, of a high school student who wondered if she's good enough, of a mother trying to balance a career, two daughters and a husband with big goals, while carving out a better sense of herself."