Marking the thirtieth anniversary of the break-up of the greatest group in the history of pop music, a new paperback edition of what has come to be regarded as the most authoritative document about the bank ever written, will be available. This much-acclaimed chronicle covers every working day of the Beatles' career, and author Mark Lewisohn, who is recognized as the world's leading authority on the subject, also includes track-by-track details of every Beatles recording session.