The premise of this book was really interesting. Every year on January 1st (Oona's birthday), she travels to a different year of her life. As the title suggests, she is literally living her life out of order. Some of the time leaps are bigger than others, but Oona learns to make the most out of her time in each age and appreciate the relationships she has during the year. Personally, I didn't like Oona and thought she was annoying. The choices she makes in this story are destructive (but I understand they also helped move the plot along - who wants to read a story where the character's life is stagnant?). Also, I believe I may have been too young to fully appreciate this book. As a twenty-year-old, I do not think I can fully grasp the different stages of aging and the experiences that come with that yet. Someone who has more life experience may enjoy this book more than I did.