Mind Tools: The Five Levels of Mathematical Reality
Rudy Rucker
The Concise Book of Trigger Points
Simeon Niel-Asher
Biolinguistic Investigations and the Formal Language Hierarchy
Juan Uriagereka
Fowler's Dictionary of Modern English Usage
Jeremy Butterfield & Henry Watson Fowler
Applied Geometry for Computer Graphics and CAD
Duncan Marsh
Secrets of Mental Math: The Mathemagician's Guide to Lightning ...
Arthur T. Benjamin & Michael Shermer
The Foundations of Arithmetic: A Logico-Mathematical Enquiry ...
Gottlob Frege
Geometric Data Structures for Computer Graphics
Elmar Langetepe & Gabriel Zachmann