基地系列
Mickey Zucker Reichert was asked to write three prequels of "I, Robot" by Asimov's estate, because she is a science fiction writer with a medical degree. She first met Asimov when she was 23, although she did not know him well. She is the first female writer to be authorized to write stories based on Asimov's novels; follow-ups to his Foundation series were written by Gregory Benford, Greg Bear and David Brin. The prequels were ordered by Berkley Books, and consist of: