How old would Sylvia Plath be today?

Sylvia Plath was an American poet and author. She is credited with advancing the genre of confessional poetry and her works include The Colossus and Other Poems (1960), Ariel (1965), and The Bell Jar (1963), a semi-autobiographical novel published one month before her suicide. The Collected Poems were published in 1981, which included previously unpublished works. For this collection Plath was awarded a Pulitzer Prize for Poetry in 1982, making her the fourth person to receive this honor posthumously.