Use of AI worries those who create covers for books

The first time Michael Whelan was warned that robots were coming for his job was in the 1980s. He had just finished painting the cover for a mass-market paperback edition of Stephen King's "The Dark Tower: The Gunslinger," a gritty portrait of the title character with the outline of a tower glimpsed through the haze behind him.

The art director for the project told him to enjoy these cover-art gigs while he could, because soon they would all be done by computers. Whelan dismissed him at the time. "When you can get a good digital file or photograph of a dragon, let me know," he recalled saying.

For the next three decades, Whelan kept painting covers the old way - on canvas, conjuring dragons, spaceships and, of course, robots for science fiction and fantasy giants including Arthur C. Clarke, Isaac Asimov, Ray Bradbury and Brandon Sanderson.

Over time, Whelan...