The supermodel - who married The Kills rocker Jamie Hince in the Cotswolds, South West England, earlier this month - has started typing up her life story, which could include revelations about her previous relationships with Johnny Depp and Pete Doherty, after being encouraged by her new husband, who enjoys reading and writing plays.
A source told The Sun newspaper: "Kate has always held back from giving interviews so the public don`t know what she`s really like and what`s she gone through in her life.
"She`s never opened up about her parents` divorce, having daughter Lila or her relationships with former boyfriends including Johnny Depp and Pete Doherty.
"Her fans will be desperate to read it and she`ll make an absolute fortune."
As well as putting pen to paper, the 37-year-old beauty - who has eight-year-old daughter Lila from a previous relationship with publisher Jefferson Hack - is set to start trying for a baby with Jamie, according to her friend Bobby Gillespie.
The Primal Scream frontman revealed: "Kate wants babies. I keep telling her to. She loves kids. The wedding was amazing and all the partying has been done. So now children is the next step."