Yes, you were right to wish you were in the other lane during this morning's commute! **Nick Bostrom** tells why we're usually caught in the slow lane.

As customers will tell you, overcrowding is a problem on trains. Fortunately, mathematical modelling techniques can help to analyse the changing demands on services through the day. **Tim Gent** explains.

Can you imagine objects that you can't measure? Not ones that don't exist, but real things that have no length or area or volume? It might sound weird, but they're out there. **Andrew Davies** gives us an introduction to Measure Theory.

During World Mathematical Year 2000 a sequence of posters were displayed month by month in the trains of the London Underground aiming to stimulate, fascinate - even infuriate passengers! **Keith Moffatt** tells us about three of the posters from the series.

Plus talks to **Jon Walthoe**, a commissioning editor for maths book, about finding new books, windsurfing and choosing a career.