(I've pretty much finished the trade edition of Mr Lewisohn's tome, and so here are a few mercifully brief thoughts. Before I begin, I should state that Mark is a mate, and a good one, so don't take this as a review, but rather a recommendation.)
It's been called The World At War of rock biographies, in that this is an enormous work of layered history, but what it puts me most in mind of is War and Peace. Obviously, Tolstoy's "whoppa" is historical fiction, and Mark's "bewk" has been written specifically to counteract the various and manifold fictions that have crept in to endless re-tellings of "the 20th century's greatest romance". Yet the structure of the thing, with multiple personal histories unfolding in parallel against the backdrop of a rapidly changing society, really reminds me of Lev's "big-boy". And these books are both, of course, very big-boys indeed.
All These Years is a magnificent piece of work, dense and detailed, but fast moving and, usefully, written free from hindsight-based comment, thus allowing the story to unfold as it happened. Mark's prose is clear, clever and highly readable. The big events are fully explained for the first time, and the small ones are, in many cases also for the first time, err...also explained. I haven't read another book which manages to convey the atmosphere and gathering excitement of those times as well as this.
I only have one real criticism, and, funnily enough, the very same one I'd level at War and Peace: it's too short. (Luckily, this will be rectified next month.)
If you are entertaining any doubts about reading yet another book about the Beatles, then cast these aside immediately, buy a copy and prepare to learn a lot (including why a sandwich would be the best symbol for John Lennon International Airport in Liverpool).
Roll on Volume 2 (no bread based punnery intended).