The longlist was announced on Monday for the 2015 National Book Award for Young People's Literature. The finalists will be named on October 14; the winners will be announced at a ceremony in New York City on November 18.

Simon vs. the Homo Sapiens Agenda, Becky Albertalli (HarperCollins/Balzer + Bray)

Symphony for the City of the Dead: Dmitri Shostakovich and the Siege of Leningrad, M.T. Anderson (Candlewick)

The Thing About Jellyfish, Ali Benjamin (Little, Brown)

Walk on Earth a Stranger, Rae Carson (Greenwillow)

This Side of Wild: Mutts, Mares, and Laughing Dinosaurs, Gary Paulsen (Simon & Schuster)

Bone Gap, Laura Ruby (HarperCollins/Balzer + Bray)

X: A Novel, Ilyasah Shabazz with Kekla Magoon (Candlewick Press)

Most Dangerous: Daniel Ellsberg and the Secret History of the Vietnam War, Steve Sheinkin (Roaring Brook)

Challenger Deep, Neal Shusterman (HarperCollins)

Nimona, Noelle Stevenson (HarperCollins/HarperTeen)