Proof that it's not yet over for the most influential pop band ever is the release of Philip Norman's John Lennon: The Life (Doubleday, $40). The author of the well-regarded Shout! The Beatles In Their Generation focuses on the gifted Beatle, with special attention paid to his relationships with his mother and father. Anything new? Yes, interviews with Yoko Ono over the past three years provide exclusive insights.