Like A Rolling Stone
Still hailed as Dylan's most groundbreaking work.
This album kicked off the trio of brilliance Dylan is still famous for, with Highway 61 Revisited in the middle.
The third in the series builds on Dylan's new "rock 'n' roll" identity, but it builds more meaningfully on the flood of lyricism that carried him away during this prolific period.
With the exception of any obscure bootlegs, Bob Dylan's official site has a nicely laid-out page to view all his albums in chronological order, right up to the weird 2009 Christmas album.