The 27-year-old 'Mean Girls' star apparently kept a diary during her rehab stint in 2013 and that would be the base of the book, reported Aceshowbiz.
"It's more or less an autobiography, but she had a minimal number of sample pages. There was initial interest, but everybody backed off. There was concern she wouldn't deliver," a source said.
A representative for the publishing house however declined to comment.
Lohan's publicist Tej Herring, meanwhile, said that "there have been some conversations, but nothing official yet."