Morse Theory
John Milnor
Causality, Electromagnetic Induction, and Gravitation: A Different ...
Oleg D. Jefimenko
Civil Disobedience
Henry David Thoreau
Civilization and its Discontents [1929; 2002, 2010]
Sigmund Freud
Drawing Product Ideas: Fast and Easy UX Drawing for Anyone
Kent E. Eisenhuth