An in-depth look at the guitars, keyboards, drums, amps, speakers and recording gear of the 30 year trip. If you are into this you will find it intriguing, otherwise you may wonder why. Lots of great photos, many early rare ones. There are guides to CDs of the different eras, so you can identify with what specific instruments and sound systems are being used. Play these while you read it. Enjoy the ride and smile, smile, smile.