Rosie O'Donnell has had "an interesting year," she confided Sunday, and a lot of it will be in her new book, "Celebrity Detox," coming this fall.

Speaking at a breakfast gathering at BookExpo America, the publishing industry's annual national convention, O'Donnell said her long-delayed memoir on fame will not be "vindictive" or "mean-spirited," but will offer a candid look at her very public life, including her brief, battling stint on "The View."

"It is, in fact, a drug," she said of fame, and spoke of seeing peers so radically, and scarily, transformed by celebrity that they looked like victims of "crystal meth."

O'Donnell, looking healthy but tired on a Sunday morning, noted that her book was supposed to come out a few years ago, but she decided it wasn't ready, not quite "cooked." Her time on "The View" convinced her she was ready to start baking again. She called the book "half blog," half "straight" writing.

Last month, O'Donnell ended an eight-month tenure on "The View" that lifted the show's ratings and, perhaps, the blood pressure of show creator Barbara Walters. O'Donnell feuded with Donald Trump and frequently had snippy exchanges with the more conservative Elisabeth Hasselbeck.

"We've had to change the epilogue," she said of "Celebrity Detox," then joked that her next career move would be "auditioning for `The Apprentice."'