London, June 16 (IANS) Late singer Whitney Houston's close friend and gospel singer BeBe Winans, who performed at the singer's funeral, has written a book titled The Whitney I Knew.

Releasing July 31, the book will include never-seen photographs of the pop superstar.

Winans promises to reveal heart-breaking accounts that led to Houston's ultimate defeat, reports contactmusic.com.

Houston was found dead in the bath of her Beverly Hills hotel room in February.

Not only Winans, Houston's mother Cissy will also release a book about her daughter in February next year.