12-week program to improve cognitive function through brain training. - Title: Brain Power Activation 12-Week Program - Author: Mainichi Genki Research Institute - Program Duration: 12 weeks - Monthly Program: Month 1, Month 2, Month 3 - Contents: Program on brain training and cognitive function improvement ★ There are a few pages with lines drawn and writing in them. This is a used item with scratches, folds, and stains on the cover. Please understand that this is a layman's inspection as stated in the profile, and we ask for your purchase. #Ichiro Grandpa's Used Bookstore We have many history books! We plan to list many more in the future♪ ※ Books priced at 300 yen can be bundled for 10 books for 2,000 yen! Please comment before purchasing if you wish to do so. ※ Free shipping, secure anonymous Mercari delivery! Immediate purchase is okay. Thank you for viewing.