I really thought that Wicked was a really interesting book. It tells the side of how the Elphaba side of the story from the day she was born to how she grew up to how she became so wicked and mean.
Now I have seen reviews about how the musical was better than the book which everyone has an entitled to their own opinions but I haven't seen the musical, yet so I don't want to start saying the musical was better than the book because of whatever the reason is or why the book is better than the musical because I don't want to be some bias person who only see it as one side kind of thing. I really do hope to see the musical soon and then I will update the review and will give my opinion of the musical and if it better than the book or not.
But for now I really like the book (at the moment) and how Gregory showed the side of Elphaba of the story and how creative how he made her story so dark and twised on how she grew up til the very end of the book.