A Brief History of Time by Stephen W. HawkingCosmos by Carl SaganThe Elegant Universe by Brian GreeneThe Fabric of the Cosmos by Brian GreenePale Blue Dot by Carl Sagan
Cosmology
219 books — 200 voters
Sapiens by Yuval Noah HarariGuns, Germs, and Steel by Jared DiamondA Short History of Nearly Everything by Bill  BrysonA Brief History of Time by Stephen W. HawkingCollapse by Jared Diamond
Big History
279 books — 133 voters

Every 9 Minutes by Christina VitaglianoThe Immortal Life of Henrietta Lacks by Rebecca SklootStiff by Mary RoachA Short History of Nearly Everything by Bill  BrysonGod's Existence by Gary R. Lindberg
Modern Science Nonfiction
492 books — 451 voters
An Accidental Philanthropist by Winsome Dunn McIntoshSapiens by Yuval Noah HarariA Short History of Nearly Everything by Bill  BrysonNew Space Capitalism by Rainer ZitelmannQuiet by Susan Cain
Best 21st Century Non-Fiction
2,422 books — 2,250 voters