Batman is a fictional character, a comic book superhero created by artist Bob Kane and writer Bill Finger. He first appeared in Detective Comics #27 (May 1939). Unlike most superheroes, Batman does not possess any supernatural powers. His secret identity is Bruce Wayne, an American billionaire playboy, industrialist, and philanthropist. From the book “We are all equal”, by Finn Nygaard. Author Elsebeth Aasted Schanz, PhD, Manager and curator of the Danish Poster Museum.