Chalkdust is about to launch its fourth issue! To celebrate, we're having a party on Tuesday 11 October 2016 at 7:15pm. There'll be:

• Hundreds of free copies of Chalkdust
• A mathematically themed quiz
• Free pizza
• Mathematical cakes
• Drinks
• The opportunity to meet the team
• The chance to purchase your very own Chalkdust T-shirt.

So come and join the fun. You can find out which branch of mathematics is for you, read about the Hollywood actress who invented Wi-Fi in her spare time, and make a start on our fiendish prize crossnumber. Last time all the tickets sold out, so register soon and invite your friends.

To find the Print Room Café, you can use this excellent route finder.

Many thanks to our sponsors: the UCL Department of Mathematics, G-Research and the London Mathematical Society. Without them the fourth issue of Chalkdust would not have been possible. We would also like to thank Brainlabs for providing the pizza!