The Bone Clocks by David  MitchellRed Rising by Pierce BrownRevelation Space by Alastair ReynoldsThe Obelisk Gate by N.K. JemisinAncillary Justice by Ann Leckie
Best Science Fiction of the 21st Century
1,208 books — 8,952 voters
The Road to Reality by Roger PenroseHow I Killed Pluto and Why It Had It Coming by Mike    BrownThe Sixth Extinction by Elizabeth Kolbert
Most Engaging Scientific Nonfiction
368 books — 284 voters

Planetfall by Emma Newman
Hugo 2016 Eligible Works
476 books — 1,085 voters
The Road to Reality by Roger Penrose1776 by David McCullough1491 by Charles C. MannOutliers by Malcolm GladwellA People’s History of the United States by Howard Zinn
Best Non-Fiction (no biographies)
6,226 books — 8,060 voters

Ender’s Game by Orson Scott CardSnow Crash by Neal StephensonThe Dispossessed by Ursula K. Le GuinThe Moon Is a Harsh Mistress by Robert A. HeinleinDune by Frank Herbert
Best Science Fiction
3,651 books — 6,978 voters