This ALA award is for the best nonfiction for teens written the year before. Here is the winner and the finalists:
WINNER

Death in the Jungle: Murder, Betrayal, and the Lost Dream of Jonestown by Candace Fleming
FINALISTS

American Spirits: The Famous Fox Sisters and the Mysterious Fad That Haunted a Nation by Barb Rosenstock

White House Secrets: Medical Lies and Cover-Ups by Gail Jarrow

White Lies: How the South Lost the Civil War, Then Rewrote the History by Ann Bausum

A World Without Summer: A Volcano Erupts, A Creature Awakens, and the Sun Goes Out by Nicholas Day, illustrated by Yas Imamura