This is "Arithmetic Meigaku: Know Your True Self and Move Your Life!" by Juan Nakamori, published by Tokuma Shoten. It's a self-help book and fortune-telling guide that helps you understand your own destiny, personality, and the flow of your luck, and can be used in everyday life and for making life choices. The book size is 21cm tall and 14.8cm wide. Regarding the condition of the item, there are no markings inside, and it is in a clean condition with no issues for reading. There are minor scratches on the cover and obi (sleeve) due to storage, but overall, it is in good condition with a clean feel.