books by subject
Recreational Mathematics

Number Games: Sixty-Five Puzzles to Set You Thinking (Puffin Story Books)

The Liar Paradox and the Towers of Hanoi: The Ten Greatest Math Puzzles of All Time

The Bird of Time: The Science and Politics of Nature Conservation - A Personal Account

Sports Science (Science at Work S.)

The Price of Cake: And 99 Other Classic Mathematical Riddles

Think Like a Mathematician: Get to Grips with the Language of Numbers and Patterns (Think Like Series, 1)

Five More Golden Rules: Knots, Codes, Choas and Other Great Theories of 20th-century Mathematics

Sudoku Book for Adults: The Big Book of 600 Sudokus for Adults from Easy to Hard with Solutions

Mensa Number Puzzles

The Times Killer Su Doku 6: 150 lethal Su Doku puzzles: 06 (The Times Su Doku)

Missing Mittens (MathStart 1)

The Pyrgic Puzzler: Classic Conundrums

The Georgian Star: How William and Caroline Herschel Revolutionized Our Understanding of the Cosmos (Great Discoveries) (Great Discoveries (Paperback))

As Easy As Pi: Stuff about numbers that isn't (just) maths

The Numbers Game: Why Everything You Know About Football is Wrong

Minecraft Maths Ages 10-11: Official Workbook (Minecraft Education)

The Ultimate Mathematical Challenge: Over 365 puzzles to test your wits and excite your mind

Tangrams: 330 Puzzles (Dover Recreational Math)

Playing Card Games

Veterinary Notes For Horse Owners

The Mathematical Recreations of Lewis Carroll: Pillow Problems and a Tangled Tale (Dover Recreational Math)

Life at the Extremes: [The Science of Survival]

The Quickway Crossword Dictionary

Enlightening Symbols: A Short History of Mathematical Notation and Its Hidden Powers

More Joy of Mathematics: Exploring Mathematical Insights and Concepts

How to Count to Infinity: Little Ways to Live a Big Life

Flies for South African Waters: A Waterside Guide to Fly Selection

Mathematical Carnival (Penguin Press Science S.)

Planet Omicron (Mathematics for Martians S.)
