Ingenuity in Mathematics
Ross Honsberger
Intensional Semantics - Chapter 3
Alonzo Church
Philosophy of the Arts: An Introduction to Aesthetics
Gordon Graham
The Philosophy of Cosmology
Khalil Chamcham & Joseph Silk & John D. Barrow & Simon Saunders
To Make a New Race: Gurdjieff, Toomer, and the Harlem Renaissance
Jon Woodson
The Publisher: Henry Luce and His American Century
Alan Brinkley