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


Prolific Authors

who have written the most books on this subject
J. J. Benítez, 30 books
Jacques Vallee, 18 books
Jenny Randles, 16 books
Antonio Ribera, 12 books
Kevin D. Randle, 11 books
Jerome Clark, 11 books
Isaac Asimov, 9 books
Brad Steiger, 9 books
Daniel Cohen, 8 books
Raymond E. Fowler, 7 books
John A. Keel, 6 books
Philip J. Klass, 6 books
Le Poer Trench, Brinsley Lord Clancarty, 5 books
Whitley Strieber, 5 books
Hilary Evans, 5 books
Jenny Randles, 5 books
Ed Walters, 5 books
Timothy Good, 5 books
William J. Birnes, 4 books
Judith Herbst, 4 books
J. Allen Hynek, 4 books
Pat Delgado, 4 books
Gray Barker, 4 books
V. G. Azhazha, 4 books
John Spencer, 4 books


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