Touching pictures

Congenitally blind people can make and understand ‘tactile pictures’ – representations form of raised ridges on flat surfaces. If made visible, these representations can serve as pictures for the sighted. Does it follow that we should take at face value the idea that they are pictures made for touch? I explore this question, and the related issue of the aesthetics of ‘tactile pictures’ by considering the role in both depiction and pictorial aesthetics of experience, and by asking how far the experience of those engaging with representations through touch can approximate to that of those engaging with them through sight.