Stories by Martin Gardner

A handful of combinatorial problems based on dominoes

A new pencil-and-paper game based on inductive reasoning

A numeranalysis by Dr. Matrix of the lunar flight of Apollo 11

Geometric constructions with a compass and a straightedge, and also with a compass alone

Simplicity as a scientific concept: Does nature keep her accounts on a thumbnail?

Tricks, games and puzzles that employ matches as counters and line segments

Random walks, by semidrunk bugs and others, on the square and on the cube

The rambling random walk and its gambling equivalent

An octet of problems that emphasize gamesmanship, logic and probability

The multiple fascinations of the Fibonacci sequence

Boolean algebra, Venn diagrams and the propositional calculus

Dr. Matrix gives his explanation of why Mr. Nixon was elected President

The world of the Mbius strip: endless, edgeless and one-sided

On the ancient lore of dice and the odds against making a point

MacMahon's color triangles and the joys of fitting them together

Counting systems and the relationship between numbers and the real world

An array of puzzles and tricks, with a few traps for the unwary

On the meaning of randomness and some ways of achieving it

Combinatorial possibilities in a pack of shuffled cards

Circles and spheres, and how they kiss and pack

Puzzles and tricks with a dollar bill

A short treatise on the useless elegance of perfect numbers and amicable pairs

Combinatorial problems involving tree graphs and forests of trees

The beauties of the square, as expounded by Dr. Matrix to rehabilitate the hippie