David Mattingly - Original cover sketch for "The World Next Door" by Brad Ferguson Source
David Mattingly - Original cover sketch for "Lucky Starr and the Oceans of Venus" by Isaac Asimov Source
David Mattingly - Original cover sketch for "Lucky Starr and the Oceans of Venus" by Isaac Asimov
David Mattingly - Original cover sketch for "Desperate Measures: Essence of Evil" by Joe Clifford Faust Source
David Mattingly - Original cover sketch for "Wolf of Shadows" by Whitley Strieber Source
David Mattingly - Original cover sketch for "Wolf of Shadows" by Whitley Strieber Source
David Mattingly - Original cover sketch for "The Lizard War" by John Dalmas Source
David Mattingly - Original cover sketch for "The Wizard of 4th St" by Simon Hawke Source
David Mattingly - Original cover sketch for "The Wizard of Sunset Strip" by Simon Hawke Source
David Mattingly - Original cover sketch for "Lucky Starr and The Pirates Of The Astroids" by Isaac Asimov Source