This is "Professor Ryuta Kawashima's Brain Training Calculation Drill for Adults: Simple Calculations, 60 Days, Volume 2." I've only flipped through it once. There are minor scratches on the cover. The text inside is clean. The paper clip in the photo is not included. Please refrain from purchasing if you are sensitive to used items, as this has been stored at home. I appreciate your understanding. Please do not ask for reservations or holds. I am unable to negotiate prices due to using a PC. This item may be removed from sale without notice if it is sold elsewhere. Thank you for your understanding.