I strongly recommend this book. It is very interesting, there are so many topics that can be evaluated regarding the main character Nora Seed and how she appreciated her life, people, friends, lover, opportunities (mainly opportunities) and how the "Boat of Opportunity" can pass again in this in between place called " The Midnight Library". Nora represents in many aspects, when a person reaches the lowest point of her / his life, with lack of hope, depression maybe and when as a person you fell unwanted or unappreciated, however there are always opportunities to correct your path. She had so many versions or opportunities to choose a life that can suit her completely, however those versions did not give her that sense of "ownership" and many were "good " lives, (almost ideal), she felt in that way (i.e. Marriage with Ash and a completely family).
The narrative is very light.- The introduction of topics like Quantum Physics, traveling between this kind of "dimensions" provide certain explanation to the situation that she is experiencing. I think that the main message will be that: We as human beings need to pay attention to the small things that are around us and that forms our lives which are very important. Don`t waste your life, try to life as possible, take opportunities and enjoyed but the only way to enjoy is by living it fully and learning and deciding and making yourself ready to take control of your life and decide to live it as "full" as you can.