"I'm Sybil." Thus, Shirley Mason shared her secret identity with Nancy Preston, former student. That disclosure cemented an enduring twenty-eight year friendship between the two via phone calls, visits, and letters. From Shirley's first letter to her last phone call to Nancy, After Sybil is a revealing glimpse into the daily life of the woman whose sixteen personalities were merged into the one Nancy knew and loved. Letters, photos, and quotes offer insight to Shirley's view of her parents, her therapist, and the bestselling book and subsequent movies about her. Interspersed are examples of Shirley's art, including a self portrait.