IN A DIFFERENT KEY: The Story of Autism, by John Donvan and Caren Zucker. How did autism — a diagnosis that didn’t exist at the beginning of the 20th century — become so prevalent, and how have our attitudes toward it changed? Two television journalists have expanded the research for their PBS series (and an award-winning magazine article) into a fascinating history of science, treatment and civil rights. (Crown, $30)

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THE UNFINISHED WORLD, by Amber Sparks. Likened to authors such as Margaret Atwood, Angela Carter and Kelly Link, Sparks returns with a second collection of 19 imaginative, dark stories that tip into fantasy and fairy tale. “The Janitor in Space,” for instance, is about just that, and “The Cemetery for Lost Faces” features a pair of orphaned sibling taxidermists. (Liveright, $15.95 paper)

GIRL THROUGH GLASS, by Sari Wilson. This debut novel, set partially in New York in the 1970s, follows a young girl striving to succeed as a ballerina and her relationship with an older balletomane mentor. The book’s other narrative thread concerns a contemporary dance professor having an affair with a student who is drawn back into the mysteries of her own past. (Harper, $25.99)