The songs in this volume are identical to the songs available on the identically-titled CD. Most of the great ELO songs are in here, and they're well presented with sheet music written out (i.e. not just lyrics with chords above).
Most of the songs sound great on solo guitar with you singing along, though some don't sound right without the big ELO production. I would say the two songs that sound most different are Horace Wimp and Don't Bring Me Down, so if you were looking to duplicate the ELO sound, you won't do it on solo acoustic with this book.