Posting only 20th and 21st century books. Trying to avoid heavy math/science/technology books.
>Roget's International Thesaurus - Barbara Ann Kipfer
>How to Read a Book - Mortimer J. Adler
>A Writer's Reference - Diane Hacker
>The Trivium: The Liberal Arts of Logic, Grammar, and Rhetoric - Sister Miriam Joseph
>Bildung (Education): Everything you need to know - Dietrich Schwanitz
>Ideas: A History of Thought and Invention, from Fire to Freud - Peter Watson
>The Well-Educated Mind - Susan Wise Bauer
>An Incomplete Education - Judy Jones
>The New Dictionary of Cultural Literacy: What Every American Needs to Know - E. D. Hirsch
>The Great Conversation: The Substance of a Liberal Education - Robert M. Hutchins
>A Guidebook to Learning: For Lifelong Pursuit of Wisdom - Mortimer J. Adler
>A Classical Education: The Stuff You Wish You'd Been Taught at School - Caroline Taggart
>How to Write a Thesis - Umberto Eco
>The Intellectual Life - A. G. Sertallinges
>Lost in Thought: The Hidden Pleasures of an Intellectual Life - Zena Hitz
>How To Talk About A book You Haven't Read - Pierre Bayard;
>A Guide for the Perplexed - E. F. Schumacher
>Numbers - Tobias Dantzig
>The Demon-Haunted World: Science as a Candle in the Dark - Carl Sagan, Ann Druyan
>Code: The Hidden Language of Computer Hardware and Software - Charles Petzold
>The Design of Everyday Things: Revised and Expanded Edition - Don Norman
>Guns, Germs and Steel - Jared Diamond
>A Little History of the World - E. H. Gombrich
>The Lessons of History - Ariel Durant, Will Durant
>Economics in One Lesson - Henry Hazlitt
>Why Nations Fail: The Origins of Power, Prosperity and Poverty - Daron Acemoglu, James A. Robinson
>Freakonomics - Stephen Dubner and Steven Levitt
>Understanding Media: The Extensions of Man - Marshall McLuhan
>Benet's Reader's Encyclopedia - Bruce Murphy
>Euclid's Elements
>What is Mathematics - Richard Courant
>Elements of Mathematics - Nicholas Bourbaki
