A Short History of Nearly Everything by Bill BrysonThe Immortal Life of Henrietta Lacks by Rebecca SklootGuns, Germs, and Steel by Jared DiamondThe Disappearing Spoon by Sam KeanLongitude by Dava Sobel
History of Science
485 books — 289 voters
The Power of Habit by Charles DuhiggThe Brain that Changes Itself by Norman DoidgeBuddha's Brain by Rick     HansonThe Mind & the Brain by Jeffrey M. SchwartzNineteen Ways of Looking at Consciousness by Patrick  House
Neuroplasticity
70 books — 138 voters

The Devil in the White City by Erik LarsonFreakonomics by Steven D. LevittA Short History of Nearly Everything by Bill BrysonGuns, Germs, and Steel by Jared DiamondOutliers by Malcolm Gladwell
Best Non-Fiction (no biographies)
6,239 books — 8,069 voters
To Kill a Mockingbird by Harper Lee1984 by George OrwellHarry Potter and the Sorcerer's Stone by J.K. RowlingAnimal Farm by George OrwellThe Hobbit, or There and Back Again by J.R.R. Tolkien
Best Books of the 20th Century
7,899 books — 49,789 voters

John Adams by David McCulloughThe Rise and Fall of the Third Reich by William L. Shirer1776 by David McCulloughTeam of Rivals by Doris Kearns GoodwinThe Guns of August by Barbara W. Tuchman
Best History Books
3,726 books — 3,765 voters
The Hunger Games by Suzanne CollinsPride and Prejudice by Jane AustenTo Kill a Mockingbird by Harper LeeHarry Potter and the Order of the Phoenix by J.K. RowlingThe Book Thief by Markus Zusak
Best Books Ever
76,737 books — 285,458 voters

Thus Spoke Zarathustra by Friedrich NietzscheThe Republic by PlatoCritique of Pure Reason by Immanuel KantMeditations by Marcus AureliusFrom Darkness Into Light by A. Helwa
Best World Philosophy Book
953 books — 1,419 voters
The Stranger by Albert Camus1984 by George OrwellSiddhartha by Hermann HesseThe Little Prince by Antoine de Saint-ExupéryThe Picture of Dorian Gray by Oscar Wilde
Best Philosophical Literature
1,182 books — 2,734 voters

To Kill a Mockingbird by Harper LeePride and Prejudice by Jane AustenThe Diary of a Young Girl by Anne Frank1984 by George OrwellAnimal Farm by George Orwell
Books That Everyone Should Read At Least Once
31,845 books — 120,989 voters