Keys to a Passion: Major works that laid the foundations of modernity presented at Fondation Louis Vuitton

A major exhibition entitled Keys to a Passion, hosted at Fondation Louis Vuitton from 1st April to 6th July 2015, marks the third phase of the institution’s inaugural programme and reaffirms the founding principles of its engagement with the arts. The exhibition presents a selection of major works from the first half of the 20th century which paved … Read more

The 10 best model reinventions

With Cara Delevingne making her acting debut in Michael Winterbottom’s new film, we look at other models who have gone on to excel in other fields

Is being vegan the most ethical way to live?

Reducing meat consumption is important, but going vegan may not solve all our problems…

If you have an ethical dilemma, email Lucy at lucy.siegle@observer.co.uk

Someday the other museums will be showing this stuff: The Designs of the Year 2015 exhibition

A snapshot of the contemporary concerns of the design world. 8 years of #designsoftheyear: The Designs of the Year 2015 nominees @ Design Museum London. Frank Gehry’s Fondation Louis Vuitton, Google’s self-driving car, Asif Kahn’s Sochi Olympic Megafaces are just some of the high-profile projects represented in the exhibition of The Designs of the Year … Read more

Earth hour: millions will switch off lights around the world for climate action

Annual switching off of lights in homes, businesses and landmarks holds extra significance ahead of this year’s climate talks in Paris, says the UN secretary general, Ban Ki-moon