The Twisted Sisterhood

The Twisted Sisterhood: Unraveling the Dark Legacy of Female Friendships is a non-fiction book by essayist and attorney Kelly Valen published by Random House/Ballantine Books on October 26, 2010.

The book is based on the author's December 2007 article and includes the results of a women's relationships survey the author conducted with 3000 women, studies and insights from experts in the fields of sociology, psychology, and neuroscience, and elements of humor, memoir and popular culture.