Elementary Number Theory: Primes, Congruences, and Secrets: ...
William Stein
The Element Encyclopedia of the Celts
Rodney Castleden
Greek Science, Its Meaning for Us (Thales to Aristotle)
Benjamin Farrington
The Problem of Evil in Early Modern Philosophy
Elmar J. Kremer & Michael John Latzer
Schauberger's engine
Maxim Kolychev
Nietzsche and the Nazis: A Personal View
Stephen R. C. Hicks