"Answer Speed Dramatically Increases with Auditory Stimulation!" Used book. *Please note that we have not checked the detailed condition of the item. ■ Item Contents *CD is unconfirmed, so please be aware that we cannot provide any guarantee. ・Answer Speed Dramatically Increases with Auditory Stimulation! *No obi (sash). *One CD (unconfirmed) included. *Overall discoloration. *The book and cover have scratches, stains, small tears, folds, and warping. *In a condition that allows for normal reading. *Please understand that there may be oversights regarding the condition of the item. Thank you.