Nudge: Improving Decisions About Health, Wealth, and Happiness
Richard H. Thaler & Cass R. Sunstein
The Pocket Universal Principles of Art
John A Parks
Metaphors We Live By
George Lakoff and Mark Johnson
Να έχεις ή να είσαι;
Erich Fromm
Zen: The Art of Simple Living
Shunmyo Masuno