Joan Rivers’ Secrets Revealed

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Eight months after her death, JOAN RIVERS’ daughter, Melissa, is settling old scores in a new book titled, “The Book of Joan: Tales of Mirth, Mischief and Manipulation.”

That includes Melissa carrying on her acid-tongued mother’s feud with Jay Leno over “The Tonight Show” – as revealed in a manuscript obtained by The ENQUIRER!

Melissa wrote that it was “hurtful and deeply unfair” that Jay continued Johnny Carson’s ban against Joan, blacklisting her mom “for no good reason.”

But the book is also full of laughter, with Melissa remembering her mother’s awful driving: “The five scariest words that ever came out of my mother’s mouth were ‘Melissa, get in the car.’ ”

Joan, 81, was rushed to a New York City hospital last Aug. 28 after complications during a throat procedure at an outpatient clinic – in a tragedy described in the book as “100% preventable.”

Joan never regained consciousness, and died Sept. 4.