Photographer Alex John Beck decided to know what our face will look like if it was symmetrical. We know that left half of our face is different from the right one. He created a series of images on which people are presented with the symmetrical face based on the left side of our face first and on our right side then.
He told : 'I was surprised at the subtle but undeniable difference between each character of our two faces.'
Meanwhile a girl's eyes get closer together in her 'right hand' portrait - making her almost cross-eyed - but her 'upper image' appears perfectly balanced.
They included men and women of different ethnic backgrounds who he had met over the years through photography.
Describing their reactions, he said: 'Oftentimes they were dismayed to see even a slight difference in emotion between one side and the other.
'The mere fact that one side seems less present than the other proved worrisome, revealing a lack of total control, of total dominance over basic functioning of expression.'
Mr Beck says that he normally defines beauty the 'same way as everyone else' but in the context of the project it was about having a more symmetrical face.
He titled the collection of images 'Both Sides Of.'
The subjects' real-life images are not shown.
'If we showed the original image everyone would use it as the point of reference, and rather than compare two versions, they'd just move their eye from one picture to the original, then back again, trying to spot what's different.'
According to science writer and author, Sam Kean, the left side of our faces are more expressive than our right sides, because they are controlled by the part of our brain responsible for emotions.
The right side of the brain also controls the left side of the body, making the left side more expressive.
Mr Kean concluded: ‘We think we’re aware of most of what we’re doing, and it’s a little disconcerting to see this ticks, and these little things emerge, suddenly.’