This is my face.

Dr Hannah Fry is an Associate Professor in the Mathematics of Cities at the Centre for Advanced Spatial Analysis at UCL. She works alongside a unique mix of physicists, mathematicians, computer scientists, architects and geographers to study the patterns in human behaviour - particularly in an urban setting. Her research applies to a wide range of social problems and questions, from shopping and transport to urban crime, riots and terrorism. 

Find out more about CASA and the degree programmes they offer here and more about Hannah's research and publications here.

Alongside her academic position, Hannah is an experienced public speaker giving conference keynotes and taking the joy of maths into theatres and schools. Hannah’s mathematical expertise has led to the development of several BBC documentaries including City in the Sky (BBC2), Britain's Greatest Inventions (BBC2),  Climate Change By Numbers (BBC4), Calculating Ada: The Countess of Computing (BBC4), Horizon: How to Find Love Online (BBC2) and The Joy of Data (BBC4). Hannah regularly appears on radio in the UK including on her long running BBC Radio 4 show The Curious Cases of Rutherford and Fry. You can find the podcasts of that show here. Online, her YouTube videos have clocked up millions of views, including her popular TED talk, The Mathematics of Love.

Hannah has also authored a number of books. Her latest, Hello World: How to be human in the age of the machine (Penguin Random House/Transworld) was shortlisted for the prestigious Bailie Gifford Prize for Non Fiction and the Royal Society Book Prize.

She has also written two popular maths books: The Mathematics of Love: Patterns, Proofs, and the Search for the Ultimate Equation (Simon & Schuster/ Ted) and The Indisputable Existence of Santa Claus (Penguin Random House/Transworld).

You can find her on twitter and instagram: @fryrsquared

If you'd like Hannah to come and give a talk please contact


How To Be Human in the Age of the Machine

- last chances to see the public lecture

Juggling is a lot easier if you use imaginary balls.

Juggling is a lot easier if you use imaginary balls.

If you’d like a chance to see my Hello World talk before it retires from public lectures, you might want to come along to the event we’re holding on Thursday the 28th in a church in Piccadilly.

I’ve been giving this talk for almost a year now, so I’ve finally learned all the jokes. And if that’s not reason enough to come along, I’ll also be eight months pregnant by the time the evening rolls around, which should add a nice frisson of excitement to anyone who likes a touch of jeopardy.

Still some tickets left on the Waterstones website. £10 entry, or £15 with the paperback.

Hope to see you there!

Hannah Fry Piccadilly event banner.jpg

Hello World

The UK cover

The UK cover

The US cover

The US cover

Hello World is here!

It's a book about how we've slowly handed over control to computers - how there are algorithms and artificial intelligence hiding behind almost every aspect of our modern lives - and what that means for our society.  Cambridge Analytica might have made the headlines recently, but these algorithms are everywhere. In our hospitals, our courtrooms, our police stations and our supermarkets. This is a book that takes stock of where we are now, and where we are headed in the not-to-distant future. It's a story of the good, the bad and the downright ugly of modern machines, asking how much we should rely on them over our own instincts, and what kind of world we want to live in. 

It's been shortlisted for the prestigious Royal Society Book prize AND the Bailie Gifford Prize - a major international award for non fiction. And they don't shortlist any old nonsense you know. So you know for a fact that it's going to be good.  

You can order on Amazon here for the UK version and here for the US.


Other books

Our 2017 Christmas book is here! Now with a fetching new cover, because there's nothing more Christmassy than RED.

And we're ready to answer the big, important questions..

Like, how do you apply game theory to select who should be on your Christmas shopping list ? Can you predict Her Majesty's Christmas Message? Will calculations show Santa is getting steadily thinner - shimmying up and down chimneys for a whole night - or fatter - as he tucks into a mince pie and a glass of sherry in billions of houses across the world?

Because who hasn't always wondered how to set up a mathematically perfect secret santa? Finally we prove once and for all that maths isn't just for old men with white hair and beards who associate with elves.

The book is available from Amazon and Waterstones and has been updated from last year to include an extra chapter (and probably a few less typos).

The Mathematics of Love

I'll be the first to admit that love and mathematics don't seem to fit naturally together. I know - just as well as you do -  that the thrill of romance can't easily be described by a simple set of equations. But that doesn't mean that maths doesn't have anything to offer.  And by picking out big questions that maths is ideally placed to describe,  I hope to persuade you that maths can offer a valuable new perspective on matters of the heart: What's the chance of us finding love? What's the chance that it will last? How does online dating work, exactly? When should you settle down? How can you avoid divorce? When is it right to compromise? Can game theory help us decide whether or not to call? 


The book is available in hardback, ebook and audiobook