In Cold Blood — Truman Capote (1966)

In Cold Blood by Truman Capote is the most celebrated work of American crime writing, having invented the non-fiction novel genre with its haunting 1959 Clutter family murder account. Capote spent six years interviewing killers, investigators, and the community, creating a narrative that treats both victims and perpetrators with humanity rarely seen in crime literature, influencing countless true-crime works that followed. A concrete data point: the book spent 38 weeks on The New York Times bestseller list and has sold over 10 million copies as of 2023.