Publishing History

This is a chart to show the publishing history of editions of works about this subject. Along the X axis is time, and on the y axis is the count of editions published. Click here to skip the chart.  This graph charts editions published on this subject.
Editions Published
Year of Publication

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Prolific Authors

who have written the most books on this subject
Isaac Asimov, 222 books
Martin H. Greenberg, 160 books
Robert Silverberg, 141 books
Arthur C. Clarke, 98 books
Katherine Applegate, 95 books
Poul Anderson, 85 books
Ray Bradbury, 74 books
Andre Norton, 74 books
Frederik Pohl, 73 books
Margaret Peterson Haddix, 71 books
Philip Reeve, 66 books
Anne McCaffrey, 66 books
Philip K. Dick, 66 books
Jude Watson, 65 books
Damon Knight, 64 books
Brian W. Aldiss, 59 books
Harry Harrison, 57 books
Alan Dean Foster, 57 books
Jules Verne, 56 books
Ben Bova, 56 books
Orson Scott Card, 56 books
Scott Westerfeld, 55 books
Gardner R. Dozois, 54 books
Kevin J. Anderson, 50 books
A. E. van Vogt, 49 books