To say Louis Wain was obsessed with cats might be the understatement of the century. The eccentric artist made a career out of painting nothing but cats for over 30 years. While most people believe he suffered from schizophrenia, there’s a possibility he may have had Asperger’s syndrome also/instead. (There’s even been speculation about infection with toxoplasmosis causing his descent into madness).
His style of painting offers a look at the progression of mental illness from the inside. Here is a series of Wain’s paintings in chronological order (click to embiggen):