Why does this exist?
Wrong. You may have a long list of degrees, experience in the industry and a reference from the president himself, but that might all count for squat if you work for one of the many companies around the world (including 3,000 in the UK alone) who hire graphologists.
According to those who study graphology, the way you write could indicate anything from your ability to solve problems in a group, to your likelihood of murdering your neighbor. According to science, this is not even close to true.
But hey, who listens to those nerds anyway.
None of this has stopped believers from making incredibly important decisions based on handwriting analysis. If you think the company you work for would never do such a thing, keep in mind that they don't even need to let you know they're doing it, and because they probably know how crazy it sounds, they often don't.