A Thousand Pieces of You follows the young Marguerite Caine as she attempts to avenge her father's murder. This is not your typical revenge story, however. Marguerite's parents are brilliant physicists, you see, and they invented the Firebird, a revolutionary technology that can transport its wearer into alternate dimensions. The primary suspect, one of her parents' graduate assistants, Paul, disappeared into another dimension, and now Marguerite is going after him. Of course things are never quite so simple, and soon Marguerite discovers her father's murder is a part something much darker and more complex than she had ever imagined. 
 I really enjoyed this book. Yes I found some aspects of it rather predictable, but there were also parts that went quite differently than what I had been expecting. The romance in particular took a turn that I wasn't expecting and I loved it; I love when things are made realistically complicated. Some YA fiction has a tendency to cling to the "insta-romance" trope and I hate it. Hate it with the burning passion of all the fire in Mordor. The point is this book complicates the relationship development in a really cool and interesting way and I really appreciated that. 
 I also think it did some cool things with the premise. Not only does the book introduce this cool new technology, but it grappled with the ethics surrounding its use. When you jump dimensions using the Firebird your body doesn't go with you; your consciousness jumps into that world's version of you. I found it really interesting that the book plays with the grey areas here. Its you, but its also not you. Where are the lines of what you should and should not do while occupying another body, even if that body does belong to an alternate version of yourself? I do admittedly wish the book would have played with this even more. There are a few scenes in particular (view spoiler)[ like when Marguerite has sex with Russian Paul while inhabiting Russian Marguerite's body. That...that made me very uncomfortable for all sorts of autonomy and consent reasons. (hide spoiler)] that I felt really needed to grapple with these ethical questions much more than they did. Missed opportunities, if you will. 
 The alternate universes were all pretty interesting too. I think the author did a great job creating a variety of alternate versions of our world and of the characters as well. I loved getting to see how all the characters knew- or in some cases didn't know- each other in the alternate worlds. The portion of the novel spent in czarist Russia was definitely my favorite, though I honestly couldn't tell you why. *shrugs* 
 All in all I found this to be a really good read and one that I would most definitely recommend. I am very much looking forward to the next book in this series!