If you judge the book by its cover, it looks like a Bruce book. This isn't a book about Bruce Springsteen, nor is it about specific Bruce fans MORE than it is an academic study of people who all like the same artist. It's technical, scientific, and just happens to use specifically-Springsteen fans as the control group.
I believe Bruce was used because his following happens to be notoriously massive, including several generations. This is probably because his music often centers around middle class life.
+ Conversion of a fan - when a person has not always been fond of an artist but turns into a fan. Religious comparisons included.
+ The live experience - what kinds of physical things typically happen, and interviews of psyched concert-goers
+ Community - friendships formed based on fandom, internet communication, etc
+ Participation - things fans outwardly do/behavior study
Now, it's all based on fans of the same subject, so there is a constant reference to Bruce. The people are talking about Bruce - but THEY are the subject of the book.
Know that, before you decide whether or not you want it. I adore these kinds of studies and happen to love Bruce, too - so naturally, I dug this book. But if you're looking for Bruce-specific information, grab something like his Rolling Stone interviews collection.
"In the end, while fans' feelings may fluctuate, connecting with Springsteen means that he becomes a part of each fan, a continuing presence to which they may turn again and again. On the whole, fandom is not some particular thing one has or does. Fandom is a process of being; it is the way one is." --Daniel Cavicchi, the author