Related Clues:

• For writer, a sort of card half-completed
• Sci-fi author Isaac
• Foundation provider when I go short
• SF writer acts like one with film that is withdrawn
• Sci-fi master Isaac
• Isaac who wrote "I, Robot"
• Author who devised the 'Three Laws of Robotics'
• "I, Robot" author Isaac
• 'The Robots of Dawn' writer
• "Nightfall" story writer
• He wrote because one needs second volume
• Doctor appears in put-up travel document as writer
• Polymathic Isaac
• Isaac —, sci-fi writer
• Like one film that is not shown for sci-fi author