What is photorealism?

Genre of art or artistic movement that encompasses, drawing, painting and some other graphic media where an artist carefully studies and understands an image in photograph then attempts to reproduce it in another medium realistically as much as possible. Though the term can be used to describe artwork broadly, it can also be used to refer to a specific group of painters and paintings in the U.S. art movement that came to being in late 1960 and early 1970.