Urantia
The Great Cult Mystery »

Weird Water And Fuzzy Logic
More Notes of a Fringe Watcher »

Huevos, Nudos y Otras Mistificaciones Matematicas / Knotted Doughnuts and Other Mathematical Entertainments
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Calculus Made Easy
Being A Very-Simplest Introduction To Those Beautiful Methods Of Reckoning Which Are Generally Called By The Terrifying Names Of The Differential Calculus An... »

How Not To Test A Psychic
Ten Years Of Remarkable Experiments With Renowned Clairvoyant Pavel Stepanek »

The Universe in a Handkerchief
This book takes the reader on a tour of Lewis Carrolls world of mathematical games and word plays. 'The Universe in a Handkerchief' contains scores of Carrol... »

Hexaflexagons, Probability Paradoxes and the Tower of Hanoi
Martin Gardner's First Book of Mathematical Puzzles and Games »

The Wreck Of The Titanic Foretold?
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The Snark Puzzle Book
Seventy-five brain teasers relating to Lewis Carroll's nonsense poem The Hunting of the Snark.. »

Aha! A Two Volume Collection
Aha! Gotcha and aha!Insight are here combined as a single volume. The Aha! books as they are referred to by fans of Martin Gardner, contain 144 wonderful pu... »