Eartha was also a successful author, with four published books:

Thursday's Child

Autobiography published in 1956. This book is what inspired the name of David Bowie's song "Thursday's Child."

Alone With Me: A New Autobiography

Published in 1975

I'm Still Here: Confessions of a Sex Kitten

Published in 1991

Rejuvenate: It's Never Too Late

Published in 2001