A Philosophy of Humour
Alan Roberts
Cleaning Data for Effective Data Science
David Mertz
Conspiracies Declassified: The Skeptoid Guide to the Truth Behind ...
Brian Dunning
Chambers Dictionary of Quotations
Don Currie & Una McGovern
Diabolic Gnosticism - Alternate Version
Frater Kafyrfos
Proto-Indo-European Etymological Dictionary
Indo-European Language Revival Association