The Book Prize Index is a searchable, free resource that lets users browse major nonfiction book prizes and the titles they honor. It covers awards from the United States and around the world, offering a quick way to discover which books have earned critical acclaim.

Users can filter by subject—History, Biography, Arts & Criticism, Science, Memoir, Politics, True Crime, Nature, etc.—or by prize. The index lists 838 records for the National Book Awards, 776 for the National Book Critics Circle Awards, 765 for PROSE Awards, and over 500 entries for the Pulitzer and Los Angeles Times Book Prize, among others.

Each book is scored by a weighted system that values wins and list placements, giving more weight to established prizes. The top‑scoring titles include Evicted: Poverty and Profit in the American City by Matthew Desmond (2016), G‑Man: J. Edgar Hoover and the Making of the American Century by Beverly Gage, and Frederick Douglass: Prophet of Freedom by David W. Blight. Publishers such as Penguin Random House, Crown, and Simon & Schuster appear frequently.

Overall, the index contains 7,066 books, 8,818 award appearances, 55 prize programs, and 121 categories, making it the most comprehensive nonfiction prize database available online.