The long-serving and trusted white personal aide of Nelson Mandela will publish her memoirs in June about how her life was transformed by South Africa's late anti-apartheid icon.
Zelda la Grange, Mandela's private assistant during his 1994-1999 presidency and subsequent retirement, had become a fixture by the Nobel laureate's side.
"Good Morning, Mr Mandela," to be published on June 19, is an "extra-ordinary story of how a young woman had her life and everything she once believed in transformed by the greatest man in her time," Penguin Books said in a statement on Thursday.
Publishing director Helen Conford promised readers the book "will touch your life and make you believe that every one of us, no matter who we are or what we have done, has the power to change."
Nicknamed "Zeldina" by Mandela, the 43-year-old emerged from Afrikaner middle-class obscurity to become the main aide of South Africa's first black president.
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She travelled with Mandela across the world, organising his every move and shielding him from a stream of people clamouring for a moment with him.
Her devotion surprised some, given her origins in the Afrikaner community that had jailed Mandela for 27 years under the apartheid laws of racial segregation.
"The lessons Nelson Mandela gave her as he renewed his country offer hope to everyone," said Conford.
The book has brought "tears" to everyone who has read it and it "shines with honesty and love", said Conford.
Sometimes referred to as Mandela's "honorary granddaughter" she described him shortly after his death on December 5 as the "easiest person to work with, the best teacher and a mentor".
