Richie Unterberger's book "The Unreleased Beatles: Music and Film" details the incredible wealth of music the Beatles recorded that they did not release, as well as musical footage of the group that hasn't been made commercially available. His other books include "Unknown Legends of Rock'n'Roll," the two-volume 1960s folk-rock history "Turn! Turn! Turn!"/"Eight Miles High," and "The Rough Guide to Shopping with a Conscience." He's also a frequent contributor to the All Music Guide and MOJO magazine, and lives in the San Francisco Bay Area."
