This is a book originally produced by Hundertwasser to accompany his exhibition. It was produced small so people could carry it around in their pockets.
It's beautifully produced, in foil printing throughout and linen hardback cover. So the prints themselves are excellent quality.
However, it is worth noting that although a lot of the prints are the size of the book (postcard size), there are also lots approximately postage stamp size.
If you are prepared for this, then you'll appreciate the book.
Overall it's something a bit unique and different, just like Hundertwasser himself.