The book is called Troublemaker: Surviving Hollywood and Scientology, and will be released on November 3 via Random House imprint Ballantine Books.
While publishers often announce a book a full year before it arrives, Remini has secretly been working on it for some time. It's not exactly clear why, though Scientology reps have been known to be rather litigious toward critics in the past.
The publishers offered the following statement about the book:
In Troublemaker, Remini, best known as the star of the popular long-running sitcom King of Queens, will detail for the first time her life growing-up in the Church of Scientology and her rise to fame in Hollywood. Indoctrinated into the church as a child while living with her mother and sister in New York, Remini eventually moved to Los Angeles, where her dreams of becoming an actress and advancing Scientology's causes grew increasingly intertwined. But when she began to raise questions about some of the church's actions, she found herself a target, which led to her—and her family's—break from the church. Bold, brash, and bravely confessional, Troublemaker chronicles Leah Remini's remarkable journey toward emotional and spiritual freedom, both for herself and for her family.
Remini is best known for her longstanding role on the sitcom The King of Queens, though her credits also include Saved by the Bell, Cheers, Blossom and even Biker Mice from Mars. Her brief film career also included an appearance in Old School.
Thanks to The Hollywood Reporter for the tip.