Promotional ad for Mister X #1 by Jaime Hernandez & Gilbert Hernandez. Art by Paul Rivoche, 1984.

Promotional ad for Mister X #1 by Jaime Hernandez & Gilbert Hernandez. Art by Paul Rivoche, 1984.

Promotional ad for Mister X by Dean Motter and Paul Rivoche, 1983.

Promotional ad for Mister X by Dean Motter and Paul Rivoche, 1983.

Promotional ad for the unpublished Mister X spin-off mini-series The Zebra Club by Dean Motter and Klaus Schöenefeld (misspelled in ad), 1986. Schöenefeld died in 1986 at the age of 23.

Promotional ad for the unpublished Mister X spin-off mini-series The Zebra Club by Dean Motter and Klaus Schöenefeld (misspelled in ad), 1986. Schöenefeld died in 1986 at the age of 23.

Rare art of the day: Promotional art for The Prisoner by Dean Motter, 1988.

Rare art of the day: Promotional art for The Prisoner by Dean Motter, 1988.