As ROSIE O'DONNELL's anticipated book Celebrity Detox (out October 9) makes headlines -- OPRAH WINFREY tells JANN CARL what she thinks about it ...

"I like the book very much," Lady O weighs in. "I thought Rosie in this book was so candid about what it's like to live a life in front of other people."

Meanwhile, BARBARA WALTERS, written at length about by Rosie, released the following statement to ET today: "She has written a very sad book and I choose to remember the happier times we had and hope to have in the future."