"Working Memory Grows Rapidly Worksheet: Memory Function Training to Build the Foundation for Learning: Ages 5 and Up" Masamichi Yuza Price: ¥2200 #MasamichiYuza #Books #Society/Education/Learning I purchased this, but it was not what I was looking for, so I did not use it. It is unused. I opened the CD-ROM to check the contents and displayed it once on my computer. (The operation was fine.)