Australia’s funniest mathematician is back in 2019 with a small format edition of 2018’s bestseller. Which number terrifies Ogdokontaheptaphobes? Why would you watch the same clock for 14 years? And have you met the 23-million-digit prime? The answers to all of these questions – and much, much more – are in Adam Spencer’s Top 100. Bursting at the seams with puzzles, quizzes, games, numerical trivia and fun, this is the ultimate book for maths nerds and anyone with an inquiring mind. Whether you’re 8 or 80, strap your thinking cap on, grab a pencil and get ready to count down from 100 to 1 with Australia’s favourite – and funniest – mathematician, Adam Spencer.

Praise for Adam Spencer

‘The things Adam Spencer writes about should be taught in every school worldwide.’ Malcolm Gladwell, author of The Tipping Point, Blink and Outliers

‘Even the page numbers will start to look fascinating once you’ve read this book!’ Amanda Keller

‘Every bright young mind in Australia should read Adam Spencer’s Big Book of Numbers – and we oldies would benefit, too.’ Peter FitzSimons