Historical Dictionary of Aesthetics
Dabney Townsend
Guerilla Data Analysis using Microsoft Excel
Bill Jelen
The Gnostic Bible
Willis Barnstone & Marvin W. Meyer
A Concise Etymological Dictionary of the English Language
Walter W. Skeat
Philosophy of Habermas
Andrew Edgar
Putting on the Mind of Christ: The Inner Work of Christian Spirituality
James Marion & Ken Wilber