"The Writer Who Couldn't Read."

"[Howard] Engel couldn't see words with his eyes. His visual cortex was broken. But he could 'see' when he used the motor part of his brain, first by tracing letters on a page, then by 'writing' those same letters in the air, and then, strangely, when he shifted to copying letters with his tongue on the roof of his mouth. Tongue-copying was the fastest."