Optical Illusion Play Pack
 »

Classic Brainteasers
 »

An Introduction To The Philosophy Of Science
 »

Logik Unterm Galgen
Ein Mathematical in 20 Problemen »

Are Universes Thicker Than Blackberries?
Discourses on Godel, Magic Hexagrams, Little Red Riding Hood, and Other Mathematical and Pseudoscientific Topics »

Conquest Of Time
 »

Penrose Tiles To Trapdoor Ciphers
And The Return Of Dr Matrix »

Annotated Ancient Mariner
The Rime of the Ancient Mariner »

New Age
Notes Of A Fringe Watcher »

From The Wandering Jew To William F.Buckley Jr
In ten essays and 19 book reviews (1969-2000), esteemed Skeptical Inquirer and Scientific American Mathematical Games columnist debunks superstition of all t... »