Yea, definitely true for my whole word reader. Though he didn't realize it until I turned one of his books upside down and asked if he could read it. He was surprised. I thought to try it because I've always been able to read upside down at almost full speed.

Tehn aiagn yuor mnid wlil irntepet mnay mroe tnihgs crorctley tahn msot popeel raleize.