How many doubles does it take?
Start with £1. Double it. Double it again. How many doubles until you pass £1,000,000?
Most grown-ups get this very wrong. Write your number down before you press.
Inside the book
Every time you turn the page, your pound doubles. Twenty-one chapters, one page each, from a pound down the back of the sofa to the million-pound page. And every sum in it can be checked by a ten-year-old with a pencil. That's a promise.
It's a game
Everyone playing starts with £1 — you included. Spend, and you go all the way back to the start.
Check the maths
The dog-walking race, the Freddo, the money machine: don't believe the book. Count for yourself.
Meet Sid & Sage
Sid likes to spend. Sage likes to save. One of them wins the summer. It isn't who you think.
Are you a Sid or a Sage?
Be honest. The game is about to test you.
The book
Written by Rob Dunfey, who was given a grown-up money book at ten, read every page, understood about half of it, and carried it around for years anyway. This is the book he wishes it had been.
- Ages 8–12 · one page per chapter
- Flick the corner and watch the acorn grow
- British edition in £ · US edition to follow in $