Book excerpt: John F. Kennedy remains central to both the American and the global imagination. Featuring essays by leading literary critics, historians, and film scholars, The Cambridge Companion to John F. Kennedy addresses such topics as Kennedy's youth in Boston and his time at Harvard, his foreign policy and his role in reshaping the US welfare state, his relationship to the civil rights and conservative movements, and the ongoing reverberations of his life and death in literature and film. Going beyond historical or biographical studies, these chapters explore the creation and afterlife of an icon, a figure who still embodies - and sparks debate about - what it means to be American.