Hello,
I bought the spanish version of the book three weeks ago. After reading the book, I couldn't focus my eyes as the book says.
But, after reading this forum and practising with 3D pictures ( famous dolphins ) I can focus.
Now, I see a lot of pictures of 3D but when I see a book -> nothing: the letters are fuzzy. I can spend a lot of time seeing fuzzy letter of a book but, I can not focus them.
Any suggestion?
thanks a lot