The former video runner wants to pen a tome revealing what life was like during his troubled marriage to the 'Rehab' singer - who suddenly died at her north London home last month aged just 27 - and give an account of what sort of person she was away from the stage.
Blake - who is currently serving a 32-month prison sentence for burglary and possession of an imitation firearm - apparently plans to revisit some of the videos he recorded of Amy to help him write the book.
A source told The Sun newspaper: "Blake's been planning to write a tell-all on Amy since she became famous. When they were together he'd film her, but there are many hours and footage he hasn't released."
It is believed Blake will start the book if he is offered an acceptable amount of money for the tome.
The former couple married in Miami in May 2007 and their destructive relationship eventually ended in 2009 when drug addict Blake - who has been blamed for introducing Amy to heroin and crack cocaine - divorced her from jail.
Several tracks on the musician's worldwide hit album 'Back to Black' were inspired by her first break-up with Blake and the pair's romance.