The Centers for Disease Control and Prevention estimates that 1 in 68 children has an autism spectrum disorder. Kelvin Murray/Getty Images hide caption

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Purity by Jonathan Franzen Emily Bogle/NPR hide caption

itoggle caption Emily Bogle/NPR
Ariel Zambelich/NPR

Jonathan Franzen is also the author of Freedom and the essay collection How To Be Alone. Michael Loccisano/Getty Images for HBO hide caption

itoggle caption Michael Loccisano/Getty Images for HBO