Around half of women in the world wear glasses. And with affordable brands like Made and Bailey Nelson offering up exciting, fashionable frames, they've lost the ‘geek’ label. But as glasses become cool, how are people’s relationships with their specs changing?

Cyber Monday is now a fully fledged cultural event and, according to Adobe, sales on the day reached $2.98 billion in the US. That’s a 12% increase on 2014 and an all-time record for the bonanza day of online-only discounts. But what’s driving US shoppers to spend like never before?

Only 0.6% of online shopping is driven by social media, compared to e-mail, which drives 27%. Can Facebook’s Buy button, integrated into newsfeeds, encourage people to spend more when they're on social media? And are retailers really welcome on such a personal platform?

80% of the world's eyewear brands are designed and manufactured by a single company. In 2010, a start-up eyewear designer with a revolutionary e-commerce platform set out to disrupt the marketplace. Where is Warby Parker headed next?