Norby, the Mixed-Up Robot(With: Janet Asimov)
1983
Norby's Other Secret(With: Janet Asimov)
1984
Norby and the Lost Princess(With: Janet Asimov)
1985
Norby and the Invaders(With: Janet Asimov)
1985
The Norby Chronicles(With: Janet Asimov)
1986
Norby and the Queen's Necklace(With: Janet Asimov)
1986
Norby Finds a Villain(With: Janet Asimov)
1987
Norby: Robot for Hire(With: Janet Asimov)
1987
Norby Down to Earth(With: Janet Asimov)
1989
Norby and Yobo's Great Adventure(With: Janet Asimov)
1989
Norby Through Time and Space(With: Janet Asimov)
1988
Norby and the Oldest Dragon(With: Janet Asimov)
1990
Norby and the Terrified Taxi(With: Janet Asimov)
1997
Norby and the Court Jester(With: Janet Asimov)
1996