John Guare is a leading American playwright, whose best known works include House of Blue Leaves, which won both an Obie and the New York Drama Critics Circle Award for the Best American Play of 1970-71 and received four Tony Awards during its 1986 revival, Four Baboons Adoring the Sun which was produced at the Lincoln Center Theater in 1992 and was nominated for four Tony Awards, and Six Degrees of Separation which received the New York Drama Critics Circle Award in 1990 and the Laurence Olivier Best Play Award in 1993.