It was her only published book.
Did you know that Margaret Mitchell never wrote another book after Gone with the Wind
And Anna Sewell's classic, beautiful literary work, Black Beauty, was her only book.
Boris Pasternak...but he was Russian...who can figure Russians. And wasn't Dr. Zhivago really LONG. Or am I mixing it up with other Russian books. My knowledge of Russian literature is, to be brutally honest, slim.
The only other thing I know about Sylvia Plath is that she killed herself. So downer there.