09/18/2007 AT 01:00 PM EDT
turned down the opportunity to promote her upcoming autobiography, Celebrity Detox
, on Oprah Winfrey’s talk show because, she says, the subject matter is "too raw."
After a New York Post Page Six
story ran Tuesday saying that O’Donnell "dissed" Winfrey in favor of a face to face with Diane Sawyer, O'Donnell wrote an open letter to the Chicago-based talk show queen that O'Donnell posted on her own Web site
In the blog post, she explains – in her usual haiku style – "the book was hard to write ... i do not feel ready to discuss or defend the things i shared on those 209 pages."
An appearance on Winfrey's show is a coveted booking for authors, who have risen to the top of the best-seller lists after exposure on the program. Having already read the book, Winfrey told ET.com
about O'Donnell's memoir, "I like the book very much. I thought Rosie in this book was so candid about what it's like to live a life in front of other people."
O'Donnell, 45, also writes in her letter that her selective silence regarding Celebrity Detox
– which details her destructive past
and speaks critically of Barbara Walters
, her former employer and cohost on The View
– is only temporary, adding, "my no has nothing 2 do with anything but me."
O'Donnell concludes her online message with the following:
oprah is a force of nature
her invitation made me cry
her kind words about the book
reinforces what we all know
2 b true about her
Cindi Berger, O'Donnell's rep, told PEOPLE, "Rosie is currently scheduled to do an interview with Diane Sawyer on Oct. 9" – the book's official publication date. The interview will run on Good Morning America
, Berger said, adding, "I'm sure she will do Oprah for another project, just not this one."
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