Great books about music?

I need help picking out a book to give my sister on christmas. She's REALLY into music, so I want it to be something having to do with music (she works for columbia records). She loves Bob Dylan, Jimi Hendrix, Coldplay, The Beatles, David Bowie, ect. Anything about these bands/artists would be great, but she loves all kinds of music. I think that she would like a autobiography or a biography best, but I'm open to any suggestions. Thanks so much!