This book is not intended for the typical Beatles fan. It's more intended for the musician Beatles fan who has a serious lust for Studio Equipment. If you're just a fan, but wouldn't know, nor care, what a Fairchild limiter is, then just find a friend who has it, peruse it, or wait for a newer version that will be paired down.
But for serious gear lovers, it's a blast. Although it won't get into how many valves are in each piece of gear, it does give not only what was used and how, but pretty often on what. You'll feel like you've been in the studio back in the 60's wearing a lab coat yourself.
It's a huge book. Not easy to carry around or read in the car. It's a couch reader.
What I particularly found cool was where the Beatles were placed, baffles and all, for particular recordings. As to the person who said this is the top 3, I'd say top 6. Don't forget Beatles Gear, Paul's super revealing autobiography Many Years From Now(drugs, sex, and writing with John, does reading get better?) and the well know collectors 910 book.
Last item, not only will there be a newer paired down version, the book is still (12/2008) available online. It goes for about a hundred bucks. Don't pay 5 times that.