Most Number of Books Typed Backwards

It is easy to type but not backwards but Michele Santelia has the most number of books typed backwards. He typed 58 books with 3,204,764 words which happened in Italy. He just used a computer with 4 blank keyboards and not looking at the screen, he typed these books backwards on December 16, 2005. On June 8, 2007 he finished typing the Italian Constitution which he intends to show to the Italian President. This is not easy but Michele had done it. Surprised?