Complete Collection for Parents


I've written or co-written eleven books, some of which have appeared in several languages. The majority are about the maths of everyday life, but I've also written books on cricket, memory and creative thinking.



I am Director of Maths Inspiration, a national programme of interactive lecture shows in theatres that has reached over 100,000 teenagers in the last ten years. I'm closely involved with the UK maths community, from primary schools to universities.


Talks & Radio

I give talks to adults and children that range from small interactive workshops to keynote lectures in front of several hundred. I've also done lots of radio, including BBC Radio 4, 5Live, Radio 3 and 2, but not 1 or 6...yet.

Recent Blogs

Alastair Cook and The Freaky Coincidence
7 September 18

As Alastair Cook retires from international cricket, here's a story of a freaky coincidence involving him, my sister and Radio 4's More or Less more...

How to present puzzles on the radio
5 September 18

If you want to present puzzles on the radio, it's not just the content that matters. Like a joke, it's also the way you tell it. more...

Arguing Climate Change
4 August 18

When there are arguments about global warming and climate change, there is often a frustrating vagueness about which part of it is being disputed more...

The Mystery of Phantom Puzzle No.137

The Mystery of Phantom Puzzle No.137
30 July 18

The story of a phantom puzzle that came from who knows where, and disappeared just as mysteriously. more...

The Lazy Student Formula
5 June 18

If you haven't got the time or inclination to revise all the topics on your course. more...

Tony Greig and Edvard Grieg

Tony Greig and Edvard Grieg
21 May 18

What's the connection between the former cricketer Tony Greig and the Norwegian composer Edvard Grieg? more...

Inching towards a metric world

Inching towards a metric world
18 September 18

Most of the English-speaking world adopted metric measurements decades ago. Yet imperial language lives on. more...

The Alfred Hitchcock Lesson

The Alfred Hitchcock Lesson
16 March 18

When schools have a special themed day, it's often a bit worthy or dull. But here's the story of how a school added mystery and suspense to the classroom. more...

Ruby Redfort's Spy Mystery
24 February 18

In the spirit of Inspector Morse, an Oxford don solved the mystery of a seemingly flawed puzzle. more...

From Aardvark to Zebra
10 February 18

A variant on a classic H.E.Dudeney puzzle more...

How To Lie With Statistics
22 January 18

Edexcel recently boasted 99.2% accuracy in their exam grading. Sounds impressive. But it isn't. more...

Who have more sisters: boys or girls?
18 January 18

If you are spending time with siblings this Christmas, ponder this question: on average who have more sisters, boys or girls? more...

Recent Tweets

If you are a mathematician, I'm curious to know: when people ask you "what IS maths?", do you have a pithy one sentence answer?

about 6 hours ago

My story about the Mars Orbiter disaster (caused by a metric/imperial conversion failure) made it on to… https://t.co/Tp9JPqN6Ld

about 20 hours ago

Eek. https://t.co/hfGZvbCqLf

4 days ago

The dragon curve video I did with @numberphile five years ago has now had over half a million views. The toy dinosa… https://t.co/849vsB5HF9

5 days ago

RT @Northernlawyer: @AliTimesTwo @MichaelRosenYes @bwthornton @robeastaway @BBCRadio4 @englishhistpod Absolutely corking episode. Loved it.

5 days ago

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