Maxwell Maltz was a plastic surgeon who found that changing patients' physical appearance was not enough, as they still felt bad psychologically due to their self-image. He introduced the concept of the "self-image" and published Psycho-Cybernetics in 1960, comparing the brain to a computer guiding itself to its target self-image. The book influenced self-image psychology and goal visualization. Maltz believed that consciously visualizing goals in a detailed, positive manner could help guide one's "inner computer" or subconscious towards achieving those goals. Regular visualization practice was recommended to internalize the desired self-image.