Details of director and writer Lena Dunham's book deal with publishers Random House has been leaked online.

Lena Dunham's upcoming book is all about advice and has been titled "Not That Kind of Girl." Details of the writer's deal with publishing house Random House has been leaked online, giving readers a peek into what the book is all about that hints on when the book may be out in the market for purchase.

According to a report published by Gawker, the website that first got a hold of details of the deal, Dunham will make $3.7 million from the deal.

In the proposal, Dunham admits that her upcoming book was inspired by former Cosmopolitan editor Helen Gurley Brown's book "Having It All."

"I've never kept a diary," Dunham writes in the book proposal's introduction. "I remember being given a journal around age six, penning a long paragraph about my massive crush on Colin Bliss (what a name!) and then leaving it casually strewn open on the kitchen counter for my parents to 'find.' Here was my feeling: if a girl writes in her diary and no one's there to read it did she really write at all?"

According to a report by CS monitor, the proposal was 66 pages long and is said to have many essay sections that is actually content from the book. Some of the lines from the book that was included in the proposal include, "Once I had a vegan dinner party which was chronicled for the style section of the New York Times," and "Cassie was a very fat girl we knew who we had nicknamed fat Cassie because she also wasn't that nice."

Dunham's "Girls" is all set to return for its second season January 13.