Stories by Martin Gardner

A fanciful dialogue about the wonders of numerology

Diversions that clarify group theory, particularly by the weaving of braids

How three modern mathematicians disproved a celebrated conjecture of Leonhard Euler

Problems involving questions of probability and ambiguity

Concerning mechanical puzzles, and how an enthusiast has collected 2,000 of them

About phi, an irrational number that has some remarkable geometrical expressions

About Origami, the Japanese art of folding objects out of paper

An inductive card game, and the answers to the "brain-teasers" in the May issue

Another collection of "brain-teasers"

The mathematical diversions of a fictitious carnival man

Concerning the properties of various magic squares

"Brain-teasers" that involve formal logic

About mazes and how they can be traversed

Diversions which involve the five Platonic solids

How rectangles, including squares, can be divided into squares of unequal size

Four mathematical diversions involving concepts of topology

A game in which standard pieces composed of cubes are assembled into larger forms

A third collection of "brain-teasers"

Some diverting tricks which involve the concept of numerical congruence

About Henry Ernest Dudeney, a brilliant creator of puzzles

About tetraflexagons and tetraflexigation

Concerning the celebrated puzzle of five sailors, a monkey and a pile of coconuts

About left- and right-handedness, mirror images and kindred matters

Concerning the game of nim and its mathematical analysis