Janet Jackson is writing an explosive tell-all about her world-famous family following the death of her older brother Michael.

“She is going to talk about Michael’s death and how it’s affected her and his children and the rest of the family,” a publishing industry insider close to Janet’s book deal reveals in the Aug. 31 issue of In Touch Weekly.

“A lot of it will focus on her battle with self-esteem and weight. She’s a huge success,” a friend adds. “But that’s not always what she has seen when she looks in the mirror, so the book will talk about how she has coped, and about her family relationships. She wants to help other young women out there.”

Janet’s book is expected early next year.