(I'm so proud :0))
He bought it himself to sharpen his memory and learning skills.

Unfortunately for him, I was in denial that he had a learning difference :-( But he managed to develop coping strategies and get through school with the ABCD rainbow (he got A's in all classes but never concurrently.)

It's good reading to keep the mind sharp. ( And I'm still playing my Brain Age and angling for Brain Age 2 for Christmas :0) )