Finger ya ce, "An rubuta Batman ne da farko a cikin salon pulps", kuma wannan tasirin ya kasance a bayyane tare da Batman yana nuna baƙin ciki game da kashewa ko gurgunta masu laifi. Batman ya tabbatar da hali mai nasara, kuma ya sami taken kansa a cikin 1940 yayin da yake ci gaba da yin tauraro a cikin Detective Comics. A wannan lokacin, Detective Comics shine mafi kyawun sayarwa kuma mafi tasiri a cikin masana'antar; Batman da babban jarumin kamfanin, Superman, sune ginshiƙan nasarar kamfanin. An nuna haruffa biyu gefe da gefe a matsayin taurari na World's Finest Comics, wanda aka fara suna World's Best Comics lokacin da ya fara a 1940. Masu kirkiro ciki har da Jerry Robinson da Dick Sprang sun yi aiki a kan labaran a wannan lokacin: Menene sunan Batman?
"Lamarin 'Yan Kasuwancin Sinadarai"