A need to say first of all that I have not finished this book, and probably never will.
I love Lost and really wanted to read a book to explain the things that I missed when watching it. This book didn't appear to be it instead concentrating on what were to me, unknown Greek Mythology and the like. This would have been fine if the book concentrated on Lost and dipped into these philosophies but it didn't.
Things may improve later on in the book but I fear I'll never know.