Just finished Dennis McNally's A long strange trip.
...and picked up Rock Scully's and David Dalton's Living with the dead, which I'm finding even more fun.
I love reading about the Grateful Dead and especially like "band on the road" reads.
It's so soothing and relaxing to let go of the guitar after a couple hours of studies, pick up the e-reader and a mug of coffee or a glass of wine and hit the couch, read some 20 pages before going to bed...