The singer has signed a lucrative deal with publisher Hodder & Stoughton to release a book chronicling her rise to fame.
The autobiography will see Lewis recall her early years in Hackney and her success after taking part in The X Factor. It will be accompanied by over 100 pictures by acclaimed photographer Dean Freeman, who worked on David Beckham's bestselling book My World.
"The last two years have been an unbelievable experience for me," Lewis said.
"So to have it documented in pictures and to be able to tell people in my own words how it feels means a lot to me.
"I know the book will be full of special moments and I’m already having a brilliant time putting it together."
Lewis's editor Fenella Bates added that she is thrilled to be working with the "global superstar".
"This will be the first time Leona tells her story of how The X Factor launched her from waitressing in Pizza Hut in Hackney to stardom on both sides of the Atlantic," she said.
"It is a real-life fairytale and every girl’s dream. Her second album will be released just after publication - the timing for the book couldn’t be better. 2009 will be Leona’s year."