American fantasist, science-fiction writer, and journalist. Most of his novels remained in print in both hardcover and paperback, and in 1959, one of his publishers estimated that his books had at that time sold over four million copies.
American fantasist, science-fiction writer, and journalist. Most of his novels remained in print in both hardcover and paperback, and in 1959, one of his publishers estimated that his books had at that time sold over four million copies.
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