Letters to a Young Mathematician
Ian Nicholas Stewart
Lectures on the Philosophy of Mathematics
Joel David Hamkins
Great Treasury of Western Thought
Mortimer Jerome Adler & Charles van Doren
Letters of C. G. Jung: Volume 1, 1906-1950
Carl Gustav Jung
Critical thinking, Logic & Problem Solving: The Ultimate Guide ...
Bigrocks Thinking
The Postman
David Brin