There are two popular books titled . Depending on which one you read, Option 1: Wicked Devil by Daniela Romero

: Neil Gaiman's Lucifer Morningstar is an elegant, deeply philosophical being weary of cosmic bureaucracy. 2. The Sympathetic Outcast

This branding works because the Wicked Devil represents . Consumers can touch the edge of "wickedness" without falling into the abyss.