The untitled memoir is described as the late singer's "unabridged and unbelievable story" and is set for release in February, EW.com said.
"When I lost my daughter Nippy [Whitney Houston's nickname], the world lost one of the most beautiful voices and an extraordinarily beautiful and charitable woman," Cissy Houston said in a statement. "In sharing our story in this book, I hope to give her fans something to treasure, the way we all treasured Whitney. We are still receiving thousands of letters each day from her fans, and I hope reading this book will provide a deeper understanding into my daughter's true story."
Whitney Houston accidentally drowned in a hotel bathtub Feb. 11 after using cocaine. She was 48.
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