☆ Please refrain from price negotiations. ☆ Please read the requests and precautions regarding transactions on my profile page. Before purchasing, please check them along with the product description. Please purchase only if you agree to and comply with the contents. ☆ About the product This is a book containing many of the problems from the brain training TV program "Brain Esthe IQ Supplement" that was broadcast when I was a child. Recommended for those who like the brain-teasing program. It is old, so there are scratches, etc. In any case, please judge the condition from the photos. Please refrain from purchasing if you are nervous or seeking a perfect item. It will be shipped by post with simple water-resistant packaging.