Katherine Philips was a major seventeenth-century poet and playwright who became widely known for her innovative use of Donnean poetics to express passionate female friendship, her occasional verses on private friends and public figures, and her moral and political acuity. She had the mixed fortune of being enshrined in posthumous volumes that both celebrated and misrepresented her achievement. Fortunately recent research has clarified our understanding of who Philips was and how she conducted her literary career.