Touponce observes the related futuristic visions in works such as The End of Eternity (1955), Foundation's Edge (1982), and Prelude to Foundation (1988). Touponce has organized the study chronologically by future history, not publication dates, thus highlighting how each novel contributes to the imaginative Asmovian universe. The detailed chronology places Asimov's science fiction beside his other efforts to popularise science, and a 1988 interview...