Ehhh but then you're on the hook for every revision of the book.
Still on the fence.
You can still get the book for what it is and enjoy its content. At the very least, I would get the first edition and skip the revisions until there's been a significant amount of revisions. I would think that the main focus of this book is art, and original art will always be unique. Just out of curiosity, could you give me a few examples of what has been revised in previous Zelda games?