The authors' credentials in the psychology department are strong, and that is the strongest part of this book. I was sold on the title's premise, that my playlist can change my life, but was looking for additional insights into how, and what kind of music would be good for what kinds of changes. You can read about the book's general categories in the other reviews and get some idea about how this works. I did not learn too much new that did not seem obvious to me before I read the book.
What I was looking for, I did not find, and that was more musical selections correlated with behavioral or mood changes. I found the music categories limited. Of all the musical selections, I found only seven classical pieces with mention of a couple of other composers also limited, and most of those were integrated into the text and not part of a suggested list. What about New Wave music? Many people find Enya very soothing. What about spiritual music? Mozart's "Ave Verum Corpus 518". Listen to "There is Faint Music" from the album "Never a Brighter Star" to slow your heartbeat and get a dose of spirituality at the same time, a beautiful piece of less well-known music.
None of the pieces on my favorite walking music playlist are found in the book. May I recommend the Bee Gees "Staying Alive," Bob Seeger's "Old Time Rock and Roll," and The Commitments "Mustang Sally?" If you want a lift in your life, try Louis Armstrong's "What a Wonderful World." I know, the authors cannot include everything, but to completely ignore certain genres like jazz seems limiting.
I would also have liked a master list of music at the end of the book, organized by the chapters' subjects. The authors might also have given some hints about how to find pieces of music at Amazon MP3 downloads, with ideas about how to select between many versions of the same piece.
My first exposure to this subject was at a lecture twenty years ago about the relationship between music and teaching struggling students to read, so this is not a new subject to me. For someone with no knowledge of the subject matter, this is a good place to start. For people who already have playlists they like, get this book at the library.