Anamorphoses are visual representations that can be correctly interpreted only from a particular perspective or angle of view. They’ve been around for centuries and can still be found today. The first recorded examples are from around 1485, from drawings by Leonardo da Vinci. They flourished in the 17th and 18th centuries. In a particular variety, the ‘catroptic’ anamorphosis, an optical mechanism like a cylinder with mirrors has to be used to decipher the meaning.