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... »

Maquinas Diagramas Logicos
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El Idioma de Los Espias
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The Snark Puzzle Book
Seventy-five brain teasers relating to Lewis Carroll's nonsense poem The Hunting of the Snark.. »

In Situ Ex Situ
Sarah Staton Mount Stuart 2007 »

Gardner's Whys And Wherefores
Gardners Whys & Wherefores »

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

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... »

Great Essays In Science
Great Essays in Science »

The Emperor's New Mind
For many years the proponents of artificial intelligence have maintained that machines will soon do everything that a human can. This text takes the reader t... »