Robert Zimmerman is a tough man to pin down. Starting off in the early sixties as a folk troubadour in the Greenwich Village cafes, he went on to become a political prophet, a blues rock howler, a country singer, a born-again christian and a modern-day hermit relentlessly touring the world on his Never Ending Tour. His voices are many, his songs taught rockers that they could write good lyrics, and he remains the most influential American artist of the second half of the twentieth century.