A book exploring the fascination of the Fibonacci sequence and its applications. - Title: The Fabulous FIBONACCI Numbers - Author: Alfred Posamentier - Publisher: Golden Ratio - Language: Japanese - Genre: Business/Economics - Price: 2300 yen (excluding tax) Downsizing my belongings! My husband bought this and read it once, then stored it on the bookshelf. It has the obi (sleeve) and the corners are clean. There are no markings or folded/creased pages inside. It's a beautiful item, but please understand that it is a used item. Thank you. Please check the photos. I will pack it carefully and ship it.