Verlag Pencil Rough Productions

Cover for Bill Holbrook · Safe Havens Treasury: the Daycare Years (Taschenbuch) (2015)

Safe Havens Treasury: the Daycar... (2015)

Cover for Bill Holbrook · Dave's Gold (Taschenbuch) (2020)

Dave's Gold (2020)

Cover for Bill Holbrook · Revenge Served Wild (Taschenbuch) (2021)

Revenge Served Wild (2021)

Cover for Bill Holbrook · Masked Romance (Buch) (2022)

Masked Romance (2022)

Cover for Bill Holbrook · Earth Return (Buch) (2024)

Earth Return (2024)