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, teenagers 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

The Shooting Stars puzzle
19 October 18

Probability puzzles can be very slippery 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...

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...

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

An interesting Shooting Stars probability question set by @statsjen this morning. But do shooting stars behave like… https://t.co/vfGb9UVVJG

4 days ago

Test your BODMAS skills... https://t.co/Bw3KcTPt60

8 days ago

I'll be doing a workshop for FE leaders at the AoC conference in November: 'How to engage reluctant students in mat… https://t.co/p15EWDPRAb

8 days ago

After five days of attritional cricket, Australia shake hands with Pakistan after battling for a draw. A thrilling… https://t.co/RmfN6r487z

12 days ago

In 2020 live cricket will return to BBC TV. Will it be Twenty20 cricket in 2020? No, that would be too simple. G… https://t.co/ZKCxuFitVl

15 days ago

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