Superior illustrations of stories with surprise endings became EC's trademark. Gaines would generally stay up late and read large amounts of material while seeking "springboards" for story concepts. The next day he would present each premise until Feldstein found one that he thought he could develop into a story. At EC's peak, Feldstein edited seven titles while Kurtzman handled three. Artists were assigned stories specific to their styles; for example, Davis and Ingels often drew gruesome, supernatural-themed stories, while Kamen and Evans did tamer material.