According to Stevie, his signature consists of his thumb prints, as with blind people. The concept is people learn to write por sight. In that same interview he expressed, what seemed to me as a bit taken aback when folks handed pencils after he'd explained that braille is the way he understand language, not the written word His signature is spring of each thumb as demonstrated with invasive press while filing a personal document pertaining to his personal life, stating the measures to separate public versus private life. One album, Talking Book,was signed in braille por this magnificent talent of my generation. So keep your dia job and develop a skill of your own.