£450k for trainers: why vintage fashion is the new smart investment

In a booming market for Birkins, Baguettes and ‘Lux Anaconda’ shoes, the traditional auction houses are getting in on the act

One hell of a city: how Birmingham embraced its heavy metal legacy

A new exhibition about Black Sabbath finally cements the Midlands’ reputation as the home of a global musical phenomenon

Catwalk cover-up: how the west is falling for modest fashion

The flowing sleeves and long hemlines favoured by Muslims are inspiring designers around the world

Regime change: 10 steps to perfect skin … but you might need a chemistry degree

The pursuit of a flawless complexion has gone far beyond cleanse, tone and moisturise. We venture into the baffling but fast-growing world of high-end skincare

Influencers can combat fast fashion’s toxic trend

We need the young to turn their fire on an industry that could soon account for a quarter of all global carbon emissions

I never set out to stick my knife into a restaurant – but some just deserve it

The Observer restaurant critic’s most biting reviews have now been collected in a book. Here, he defends the art of negative criticism – after all, it’s just a part of the job