Mindstorms: Stories to Blow Your Mind by Neal Shusterman
An autistic child inhabis a world of silence; he neither hears nor speaks. Yet he has a remarkable talent: he can paint pictures. Not ordinary pictures, but works of art so realistic that one can literally reach "through" the canvas into the world beyond. His world. Impossible? Not in the realm of "MindQuakes" -- a mysterious zone somewhere between reality and fiction where all things are possible.