Steinhaus H. Mathematical Snapshots

3rd ed. — Oxford University Press, 1983. — 311 p.Triangles, Squares, and Games.
Rectangles, Numbers, and Tunes.
Weighing, Measuring, and Fair Division.
Tessellations, Mixing of Liquids, Measuring Areas and Lengths.
Shortest Paths, Locating Schools, and Pursuing Ships.
Straight Lines, Circles, Symmetry, and Optical Illusions.
Cubes, Spiders, Honeycombs, and Bricks.
Platonic Solids, Crystals, Bees' Heads, and Soap.
Soap-Bubbles, Earth and Moon, Maps, and Dates.
Squirrels, Screws, Candles, Tunes, and Shadows.
Surfaces Made of Straight Lines, the Chain, the Toycart, and the Minimal Surface.
Platonic Bodies Again, Crossing Bridges, Tying Knots, Coloring Maps, and Combing Hair.
Board of Fortune, Frogs, Freshmen, and Sunflowers.
Notes.