Peter Guralnick is an American author and music historian, best known for his biographies of influential musicians. His most notable works include biographies of Elvis Presley and Sam Cooke, which have received critical acclaim for their depth and insight into the lives of these iconic figures. Guralnick's writing often explores the cultural and social contexts surrounding the music he covers. He has also written about the blues and rock and roll genres, contributing to a greater understanding of their impact on American culture. His work is celebrated for its thorough research and engaging storytelling.