The Duke of Sussex will share “mistakes and lessons learned” during his life in a memoir to be published next year.
Announcing the deal with publishers Penguin Random House, Prince Harry said he would reflect “the highs and lows” and be “accurate and wholly truthful”, reports the BBC.
The duke, who is reportedly not expected to obtain permission for the project from Buckingham Palacehas, recently spoke privately with his family about writing the book.
Harry, who alongside his wife Meghan stepped back from royal duties last year, will donate proceeds to charity.
The duke, 36, said in a statement that he is writing the book not as the prince he was born but as the man he has become.
“I’ve worn many hats over the years, both literally and figuratively, and my hope is that in telling my story – the highs and lows, the mistakes, the lessons learned – I can help show that no matter where we come from, we have more in common than we think.
“I’m deeply grateful for the opportunity to share what I’ve learned over the course of my life so far and excited for people to read a first hand account of my life that’s accurate and wholly truthful.”
Details of the book deal with Penguin, which have not been released, include an audio book and international rights.
Penguin described the book in a statement as “intimate and heartfelt” and “honest and moving”.
“Prince Harry will offer an honest and captivating personal portrait, one that shows readers that behind everything they think they know lies an inspiring, courageous, and uplifting human story,” it added.In May, it was announced that the Duchess of Sussex would publish a children’s book, the Bench, about father-son relationships, as seen through the eyes of mothers with the same publisher said to be inspired by the bond between Harry and their son.