Michelle Obama’s memoir is on course to become the most popular autobiography to date, according to its publisher.
Becoming, first published just five months ago, has already sold more than 10 million copies, Bertelsmann said.
“We believe that these memoirs could well become the most successful memoir ever,” said Thomas Rabe, chief executive of the German firm.
The firm paid $60m (£48m) in 2017 for the rights to the book alongside that of former US President Barack Obama.
Mr Obama’s book is yet to be published.
Nielsen – which tracks UK book sales – said Michelle Obama’s book was currently 11th on its list of top 20 bestselling biographies and memoirs, which tracks sales since official records began in the late nineties.
A Child Called It, by Dave