Exonerated murder mom CASEY ANTHONY has been keeping a secret diary and now she plans to publish it as a book!

As The ENQUIRER previously reported Anthony had been keeping a journal since her daughter Caylee first disappeared and recounts her life behind bars as she stood accused of murdering the two year-old Caylee.

"Casey has been keeping a journal and spends the majority of her days now writing," a source told .

 "She has also been spending a lot of time going through her past journal entries and including excerpts that she wants included in a book that she wants to write.

“Make no mistake, Casey will absolutely be releasing a book, it's just a matter of time. Casey feels this is the only way that she can get her story out and she feels that the public wants to hear from her.

“It's unlikely that Casey will have to submit a book proposal and her lawyer, Cheney Mason, has been in discussions with several different publishers, although the response from most has been lukewarm at best.

 “The big publishing houses fear the backlash from the public and aren't lining up to sign Casey. However, she isn't concerned about it and Casey feels that she will be able to find a publisher.”