A Beginner's Guide to Mathematical Logic
Raymond M. Smullyan
Linguistic Typology: Morphology and Syntax
Jae Jung Song
Linguistics: An Introduction to Language and Communication
Adrian Akmajian & Richard A. Demers & Ann K. Farmer
On Life after Death
Carl Gustav Jung
Language and Recursion
Francis Lowenthal & Laurent Lefebvre
History of God
Karen Armstrong