I don't know what I was thinking when I bought this book! It doesn't even have guitar tabs, which I guess is why it's called a fake book. But in my opinion, if you could fake the songs in this book using this book, then you would probably be good enough that you wouldn't need this book!
I doubt that pianists would find this book very useful either.
Maybe I just don't see the value in fake books, but I feel that I waisted $25 on a book that just collects dust.