Bell was hired to produce artwork for the band, beginning with local show posters, promotional items, and press kits. He moved on to album artwork, where he built a mythology that included slang, nicknames, and otherworld concepts that eventually became part of the artwork and liner notes of the Funkadelic records. Bell often came up with nicknames, which he called "tags", for people. The album cover artwork was credited under Bell's name, but the liner notes credited his work to Sir Lleb. Bell worked to reflect the band's atmosphere of its music and stage performances in his work, for which he used markers and felt-tipped pens because the fumes of the paint he used were too toxic, and he often traced the markers with acrylic due to issues with color separation from the printing process. The finished works were often 300 times the size of the actual record covers for higher printing quality. Although he went to college, Bell considered himself to be self-taught. Bell said he created the original pieces on three foot square panels, and often would only have the record title, and would not have heard the music before creating the album artwork.