I purchased this new, but it does not include the supplementary poster. I will include the postcards, but as you can see in the image, there is a large crease... There is a slight crease on the cover of the book, but otherwise, I think it's in good condition. They sell for 600-700 yen at used bookstores, so it's a good deal! If you buy two Nintendo Dreams together, I'll sell them for 500 yen! Thank you for looking.